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Reviewed on Jan 29, 2019 , Sam Vafaei, Simon Barbier, Jean-Simon Bonneterre, Yannick Khong

Anker SoundCore Liberty Air
HEADPHONES REVIEW

Usage Ratings - Version 1.2

Test Benches:

  • 1.2: Winter 2018
  • 1.1: Summer 2017
  • 1.0: Winter 2017
  • 0.9: Winter 2016
7.1
Mixed Usage
What it is: This is the combination of the different use cases to evaluate how versatile the headphones are. Therefore an everyday headphone should be well-rounded enough to adapt to most situations and environments without significant losses in sound quality, design ergonomics or isolation.
Score components:
7.3
Critical Listening
What it is: The level of audio fidelity a headphone can reproduce. Therefore a balanced and true representation of bass, mids, treble, soundstage and imaging, as well as a comfortable listening experience, is essential for critical listening.
Score components:
7.5
Commute/Travel
What it is: How well the headphones handle the loud environments involved in commuting or traveling. Therefore your listening experience should be comfortable, hassle-free and as isolated from noise as possible.
Score components:
8.1
Sports/Fitness
What it is: How well-adapted the headphones are, to use while doing sports or strenuous exercise. Therefore the headphones should not be too cumbersome and deliver a stable and comfortable listening experience.
Score components:
7.4
Office
What it is: How well the headphones can deliver a comfortable and isolated listening experience in an office-like environment. They should not leak much and should block the noise of a busy office.
Score components:
5.6
TV
Score components:
4.6
Gaming
Score components:
Type : In-ear
Enclosure : Closed-Back
Wireless : Truly Wireless
Noise-Cancelling : No
Mic : Yes
Transducer : Dynamic

The Anker Liberty Air are above-average mixed usage headphones and are very versatile for everyday casual use. Their truly wireless design resembles that of the Apple AirPods, but with a glossier finish. They are very portable, and their in-ear fit blocks a lot of ambient noise, which is nice for commuting and at the office. They have good audio reproduction for in-ears and have an amazing wireless range. Unfortunately, truly wireless earbuds don’t have very long battery life, and their latency is too high for watching videos and gaming. On the upside, they offer great performance for their price, and most users should be pleased with these.

Test Results
Design 7.5
Sound 7.3
Isolation 8.2
Microphone 6.2
Active Features 5.4
Connectivity 2.9
Pros
  • Very lightweight and portable design.
  • Good audio reproduction.
  • Great isolation performance.
Cons
  • In-eat fit might not be for everyone.
  • No volume controls.

Check Price

7.5

Design

Score components:
Anker SoundCore Liberty Air Design Picture

The Anker Soundcore Liberty Air are very lightweight and portable truly wireless in-ears. They are comfortable, but the in-ear fit might not be for everyone. These headphones have a nice touch-sensitive surface, but unfortunately, they don’t have volume controls on the earbuds. They look like budget Apple AirPods with a glossy finish that is fingerprint prone. On the upside, they are very stable for sports if you find the best tip size for your ears. They also come with a small and solid charging case that protects the headphones well. 

Style
Anker SoundCore Liberty Air Design Picture 2

The Anker Liberty Air are very low-profile truly wireless in-ears that have a similar design to the Apple AirPods. They have the same long stalks that protrude outside of your ears where you would normally have cables attached. They have a glossy finish that is fingerprint prone and look more plasticky than the AirPods. They come in an all-black or all-white design.

7.0 Comfort
What it is: Adjustability and degrees of freedom, pressure, stiffness and weight.
When it matters: When the headphones are going to be used for long durations.
Score components: Subjectively assigned
Anker SoundCore Liberty Air Comfort Picture
Weight : 0.02 lbs
Clamping Force
What it is: The force that the headphones exert on your head, once you have them on. This is purely a measurement of the force applied, which does not take into account the earpad's surface area and the resulting pressure you will feel, on or around your ears.
When it matters: The tighter the headphones, the more force they put on your head. This can get uncomfortable or cause pain and soreness during long listening sessions.
:
0 lbs

The in-ear fit of the Liberty Air is decently comfortable but might not be for everyone. They come with 4 silicone tip sizes for you to find the most comfortable fit. Also, these headphones are very lightweight, and you barely feel them inside your ears. Some may feel some fatigue after listening to them for a while.

5.3 Controls
What it is: The control scheme of the headphones, the number of functions provided, button layout and ergonomics as well as the quality of tactile feedback.
When it matters: If you want to control volume, pause your music or make phone calls without directly interacting with your audio device.
Anker SoundCore Liberty Air Controls Picture
Ease of use : Good
Feedback : Mediocre
Call/Music Control : Yes
Volume Control : No
Microphone Control : No
Channel Mixing
What it is: Being able to mix audio channels directly on the headphones.
When it matters: This is most useful when using a separate chat software so that you can mix in-game audio and chat audio depending on your needs.
:
N/A
Noise Canceling Control : N/A
Talk-Through : N/A
Additional Buttons : No

The Liberty Air have a decent touch-sensitive control scheme. You get basic functionalities like call/music management and track skipping, but unfortunately, you don’t have any control over your listening volume directly on the earbuds. You'll have to change it on your device. On the upside, the control scheme is very easy to use and responsive, but you don’t get any type of feedback from most commands. You get small audio cues for powering on/off the headphones and during the pairing procedure, but that’s it.

9.2 Breathability
What it is: How hot the headphones get when you wear them for an extended period of time.
When it matters: If you often have long listening sessions or use your headphones while doing physical activities like running or working out.
Score components:
Anker SoundCore Liberty Air Breathability After Picture
Avg.Temp.Difference : 0.8 C

Like most in-ear headphones, the Anker Liberty Air don’t trap any heat inside your ear, so you shouldn’t notice a difference in temperature when wearing them. This makes them a good option for sports as you shouldn’t sweat more than usually during physical activity.

9.5 Portability
What it is: The volume of space occupied by the headphones when folded into their most compact format.
When it matters: If you're often on the move and need to carry your headphones in a bag, purse , or pocket.
Score components:
Anker SoundCore Liberty Air Portability Picture
L : 1.6 "
W : 1.0 "
H : 0.9 "
Volume : 1.4 Cu. Inches
Stand required : N/A

These truly wireless headphones are very portable and can easily fit inside small pockets or a bag. They also come with a small solid case that doesn’t add too much bulk, and it can also fit in pockets, which is very convenient.

7.5 Case
What it is: The provided carrying options to protect your headphones when transporting them.
When it matters: To prevent damaging your headphones, if you often carry them in your bag or pocket.
Score components: Subjectively assigned
Anker SoundCore Liberty Air Case Picture
Type : Hard case
L : 2.4 "
W : 1.9 "
H : 1.2 "
Volume : 5.5 Cu. Inches

The Anker Soundcore Liberty Air come with a nice hard case that is also a charging station for the headphones. It protects the headphones against scratches and impacts, but it isn’t waterproof like the earbuds are. The lid closes by magnetic force, but it opens very easily and the buds might fall out with a significant impact. On the upside, you get a battery life indicator on the case.

7.0 Build Quality
What it is: Durability, material quality, cheap/expensive feel.
When it matters: When the headphones are going to be used by multiple users (classes/studios), by children, in tough conditions, on a daily basis, or for exercise.
Score components: Subjectively assigned
Anker SoundCore Liberty Air Build Quality Picture

The Anker Liberty Air are decently well-built truly wireless headphones. They are made of glossy plastic that feels a bit cheap, but the buds are dense enough to survive accidental drops without too much damage. The case is also decently made and should help protect the headphones. The earbuds are also rated IPX5 for sweat and water resistance, but we currently do not have a test to accurately measure this. However, the case isn't waterproof.

7.5 Stability
What it is: How the headphones are designed to prevent them from slipping off your ears or falling off your head.
When it matters: If you plan on using the headphones while doing sports or other physical activities that requires a lot of movement.
Score components: Subjectively assigned
Anker SoundCore Liberty Air Stability Picture

The stability of the Liberty Air is very dependent on the ear tip you use. If you can achieve a decent seal and fit, the buds barely move inside your ears and are suitable to run or workout with. On the upside, their truly wireless design gets rid of the risk of a cable getting hooked on something and pulling out the headphones.

Cable
Anker SoundCore Liberty Air Cable Picture
Detachable : N/A
Length : N/A
Connection : N/A

These truly wireless headphones do not come with any cable other than the 2-foot micro-USB charging cable.

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Headshots 1
Headshots 2
7.3

Sound

What it is: How accurately the audio is reproduced. The tests are performed with the headphones' most commonly used features enabled (noise-cancelling, wireless, etc.)
Anker SoundCore Liberty Air Frequency Response

The Anker Liberty Air are above-average sounding truly wireless in-ear headphones. They have a deep and well-balanced bass, an even and clear mid-range and a great treble. However, their mid-range is slightly recessed, nudging the vocals and leads to the back of the mix, but this should be barely noticeable. Also, there’s a dip in the treble that creates a small lack of detail and brightness, and certain sibilances (S and T sounds) might be sharp for some users. Overall, they are versatile in-ears for a wide variety of music, from bass-heavy to vocal-centric genres. However, if you prefer a more bass-heavy sound profile, look at the SoundPEATS TrueFree or the Anker Soundcore Spirit X

9.3 Bass
What it is: Frequency Response from 20Hz-250Hz
When it matters: When the material is heavy on bass frequencies, such as those of kick drums and bass guitar.
Score components:
Anker SoundCore Liberty Air Bass
Std. Err.
What it is: The amount of deviation (weighted standard error) in bass frequency response (20Hz-250Hz) as compared to a target response that would sound perfectly balanced to most people.
When it matters: When a balanced and neutral (reference) bass performance is desired.
Good value: <4dB
Noticeable difference: 0.1dB
:
1.06 dB
Low-Frequency Extension
What it is: The lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters: Shows how extended the bass is.
Good value: <40Hz
Noticeable difference: 5Hz
:
10 Hz
Low-Bass
What it is: The average amount of over/under-emphasis in frequency response from 20Hz-60Hz.
When it matters: Kick drums and low frequency effects get their 'thump' from this range. Mostly felt than heard.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
1.36 dB
Mid-Bass
What it is: The average amount of over/under-emphasis in frequency response from 60Hz-120Hz.
When it matters: Melodic bass instruments have most of their fundamental frequencies in this range. This is where the 'body' and 'punch' of the bass sits.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
1.25 dB
High-Bass
What it is: The average amount of over/under-emphasis in frequency response from 120Hz-250Hz.
When it matters: Most instruments get their warmth and full-ness from this range. When over-emphasized, mixes tend to get muddy and boomy.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
0.68 dB

The bass of the Liberty Air is excellent. The response is flat and virtually flawless throughout the range, and mostly within 1.5dB of our neutral target. The LFE (low-frequency extension) is at 10Hz, which is also excellent. Overall, the bass is deep, thumpy, and punchy, while being well-balanced, making them suitable for all genres of music, including the bass-heavy ones.

8.7 Mid
What it is: Frequency Response from 250Hz-2KHz
When it matters: When the material is heavy on mid-range frequencies. This is the case for the majority of audio content.
Score components:
Anker SoundCore Liberty Air Mid
Std. Err.
What it is: The amount of deviation (weighted standard error) in mid frequency response (250Hz-2.5KHz) as compared to a target response that would sound perfectly balanced to most people.
When it matters: When a balanced and neutral (reference) mid performance is desired.
Good value: <4dB
Noticeable difference: 0.1dB
:
1.69 dB
Low-Mid
What it is: The average amount of over/under-emphasis in frequency response from 250Hz-500Hz.
When it matters: Most instruments have their fundamentals or low harmonics in this range. Over-emphasis in this range sounds muddy and cluttered. Under-emphasis, thins out the vocals and lead instruments.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
1.26 dB
Mid-Mid
What it is: The average amount of over/under-emphasis in frequency response from 500Hz-1KHz.
When it matters: This range is occupied mostly by upper harmonics. Over-emphasis sounds forward and boxy. Under-emphasis pushes instruments to the back of the mix.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-1.96 dB
High-Mid
What it is: The average amount of over/under-emphasis in frequency response from 1KHz-2KHz.
When it matters: Most instruments, especially vocals, get their intensity and clarity from this range. Over-emphasis sounds honky and harsh, under-emphasis sounds weak and distant.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
0.47 dB

Their mid-range performance is very good. The response is quite even and mostly flat throughout the entire range. However, there is also a shallow 2dB dip in mid-mid, slightly nudging the vocals to the back of the mix, but this will barely be noticeable.

8.8 Treble
What it is: Frequency Response from 2KHz-20KHz
When it matters: When the material is heavy on high-range frequencies, such as voice, cymbals, and any other material where brightness, brilliance and airiness is desired.
Score components:
Anker SoundCore Liberty Air Treble
Std. Err.
What it is: The amount of deviation (weighted standard error) in treble frequency response (2.5KHz-20KHz) as compared to a target response that would sound perfectly balanced to most people.
When it matters: When a balanced and neutral (reference) treble performance is desired.
Good value: <4dB
Noticeable difference: 0.1dB
:
2.47 dB
Low-Treble
What it is: The average amount of over/under-emphasis in frequency response from 2KHz-5KHz.
When it matters: Almost all instruments rely on this range for their presence, detail, and articulation. Over-emphasis can sound harsh and painful. Under-emphasis hurts the comprehensibility of vocals and lead instruments.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-0.15 dB
Mid-Treble
What it is: The average amount of over/under emphasis in frequency response from 5KHz-10KHz.
When it matters: This is the sibilance range. Cymbals, vocals, and lead instruments rely on this range for brightness and presence. Over-emphasis sounds piercing and painful, under-emphasis sounds dull and lispy.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-0.85 dB
High-Treble
What it is: The average amount of over/under-emphasis in frequency response from 10KHz-20KHz.
When it matters: This range gives brilliance and airiness to the sound. Over-emphasis sounds hissy, under-emphasis sounds closed-up and lifeless.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-2.86 dB

The treble performance of the Anker Liberty Air is great. The response is fairly even and follows our target curve well. They might be a bit sibilant for some, but not everyone will hear it. Also, there’s a small dip around 5KHz, which will negatively affect the detail and brightness of vocals and leads, but this should barely be noticeable.

Raw Frequency Response
What it is: The average uncompensated frequency response of the headphone. For in-ears and earbuds, this corresponds to the average of 5 measurements/re-seats on the dummy head (HMS). For over/on-ear headphones, this corresponds to the average of 5 measurements/re-seats on the HMS (Head Measurement System) for the mid and treble ranges, and 5 measurements/re-seats on 5 human subjects for the bass range.
When it matters: This is for those who want to see the raw and uncompensated frequency response of the headphone. Some of the more advanced users, are able to read and evaluate headphone frequency response in its raw form and without compensation. This will be especially useful to them if they have their own headphone compensation/target curve, which may differ from the compensation curve/target response used by RTINGS.com.
Score components:
9.1 Frequency Response Consistency
What it is: The amount of deviation of each frequency response pass, from the average frequency response.
When it matters: Shows how consistently the headphones perform after re-positioning them.
Score components:
Anker SoundCore Liberty Air Consistency L Anker SoundCore Liberty Air Consistency R
Avg. Std. Deviation
What it is: The average amount of deviation in frequency response of 5 re-seats, from the average frequency response.
When it matters: Shows how consistently the headphones perform after re-positioning them.
Good value: <0.5
Noticeable difference: 0.1
:
0.19 dB

The frequency response consistency is excellent. If the user can achieve a proper fit and an air-tight seal using the assortment of tips that come with the headphones, then they should be able to get consistent bass and treble delivery every time they use the headphones.

9.1 Imaging
What it is: Imaging qualities are inherent to the audio content, the headphones have to 'reproduce' them rather than 'create' them. They determine how accurately the objects are positioned in the stereo image, and how transparent the imaging is.
When it matters: When accurate positioning of the objects in the stereo image, and clear and transparent imaging is desired.
Anker SoundCore Liberty Air Group Delay Anker SoundCore Liberty Air Phase Response
Weighted Group Delay
What it is: The average amount of group delay calculated based on a perceptual weighting filter. Group delay indicates how long it takes for each frequency to reach their maximum amplitude. This is a monaural quality and can be perceived even with one ear.
When it matters: Headphones with lower group delay have more transparent imaging and a tighter bass. Headphones with higher group delay in the bass range tend to have a wimpy and loose bass, and headphones with higher group delay in the treble range tend to have a less transparent imaging.
Good value: <0.5
Noticeable difference: 0.1
:
0.16
Weighted Amplitude Mismatch
What it is: The Left/Right balance of our test unit, that is, the amount of amplitude difference between the left and right drivers. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters: When a properly balanced stereo image and low manufacturing tolerance is desired. A poor score indicates a noticeable difference in level between the left and right drivers.
Good value: <1.5
Noticeable difference: 0.1
:
0.53
Weighted Frequency Mismatch
What it is: The amount of difference (Std. Err.) between the frequency response of the left and right drivers of our test unit. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters: When an even and stable stereo image, as well as a low manufacturing tolerance, is desired. A poor score indicates there may be 'holes' in the stereo image at certain frequencies.
Good value: <2
Noticeable difference: 0.1
:
1.25
Weighted Phase Mismatch
What it is: The amount of difference (Std. Err.) between the phase response of the left and right drivers of our test unit. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters: When an even and stable stereo image, as well as a low manufacturing tolerance is desired. A poor score indicates there may be inaccuracies in the stereo image reproduction at certain frequencies.
Good value: <16
Noticeable difference: 3
:
1.53

The stereo imaging is excellent. Their weighted group delay is at 0.16, which is very low. The group delay graph also shows that the entire response is well below the audibility threshold. This ensures a tight bass and a transparent treble reproduction. Also, the L/R drivers of our test unit were well-matched in frequency, amplitude, and phase response. This is important for the accurate placement and localization of objects (voices, instruments, video games effects) in the stereo image. Note that these results are only valid for our unit and yours may perform differently.

1.0 Soundstage
What it is: Soundstage qualities are not inherent to the audio content, the headphones have to 'create' them rather than 'reproduce' them. They determine whether the sound is perceived to be coming from inside or in front of the head, how open and spacious the soundstage is, how much the headphones acoustically interact with the environment, and how strong the phantom center is.
When it matters: When an accurately produced, large and spacious soundstage, similar to that of a stereo loudspeaker setup is desired.
PRTF Accuracy (Std. Dev.)
What it is: The standard deviation of the PRTF (Pinna-related transfer function) of the headphones compared to a reference loudspeaker's PRTF at 30°. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters: An accurate pinna activation is mainly responsible for how natural and speaker-like the soundstage is perceived to be. The less error in the shape of the PRTF, the more natrual and speaker-like the perception of the soundstage will be. High amounts of error may indicate a soundstage that is unnatural or odd.
Good value: <2.5
Noticeable difference: 0.1
:
N/A
PRTF Size (Avg.)
What it is: The average amplitude of the PRTF (Pinna-related transfer function) of the headphones compared to that of a reference loudspeaker's PRTF at 30°. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters: This value is responsible for the perceived size of the soundstage. The higher the value, the larger the perceived size of the soundstage. However, values above the reference (5.0dB) could result in a soundstage that is perceived as unnatural or odd.
Good value: >3.7
Noticeable difference: 0.1
:
N/A
PRTF Distance
What it is: The depth of the "10KHz notch" of the headphone's PRTF, which is caused by phase cancellations at the concha. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters: This value is mainly responsible for the perceived distance and elevation of the soundstage. A small distance value may result in a soundstage that is perceived to be located inside the head. Larger values may help pull the soundstage out from inside of the head and bring it to the front.
Good value: >13
Noticeable difference: 1
:
N/A
Openness
What it is: How open the headphones are, and how open and spacious they sound. This quality is monaural and can be perceived even with one ear. This test differentiates between acoustically and electronically produced crosstalk and only takes the acoustically generated crosstalk into account. This value is the inverse of the Noise Isolation test score, and could be indirectly related the acoustic impedance of the headphones.
When it matters: When a headphone with a sense of an open, and spacious soundstage is desired. A value of 10 indicates a fully open headphone, and a value of 0 indicates a fully closed headphone.
Good value: >7.5
Noticeable difference: 0.5
:
2.5
Acoustic Space Excitation
What it is: How loud the headphones are, and how much they excite their environment acoustically. If the headphones are loud and open enough, the sound leaking from the headphones will be affected by the environment (reflections/reverb) before reflecting back into the open headphones and to the listener's ears. This quality is monaural and can be perceived even with one ear. This value is the inverse of the Leakage test score.
When it matters: Headphones with higher excitation values, similar to openness, tend to have soundstages that are perceived as more open and spacious.
Good value: >7.5
Noticeable difference: 0.5
:
0.3
Correlated Crosstalk
What it is: How strong and solid the phantom center is. This is mostly a stereo quality and its effects on mono content are minimal. This test is sensitive to the phase of the crosstalk and whether it is produced acoustically or electronically.
When it matters: When a true reproduction of the stereo image is desired. A value of 0 indicates no crosstalk, or that the existing crosstalk is not correlated enough to affect the phantom center. A negative score means the crosstalk is out of phase with the original signal, resulting in a slightly wider stereo image at the expense of creating a 'hole' at the center of the stereo field. A positive score means the crosstalk is in phase and positively affecting the phantom center.
Good value: >1dB
Noticeable difference: 0.3dB
:
0.0 dB

The soundstage is poor. This is because creating an out-of-head and speaker-like soundstage is largely dependent on activating the resonances of the pinna (outer ear). The design of in-ears and earbuds is in such a way that fully bypasses the pinna and doesn't interact with it. Also, because these headphones have a closed-back enclosure, their soundstage won't be perceived to be as open as that of open-back earbuds like the Apple AirPods, Google Pixel Buds, or the Bose SoundSport Free.

6.8 Total Harmonic Distortion
What it is: The subtle, unwanted frequencies (harmonics) produced alongside the intended frequencies.
When it matters: When clean and pure sound reproduction is desired, though its effect is not as noticable as frequency response.
Score components:
Anker SoundCore Liberty Air Distortion
Weighted THD @ 90
What it is: The overall amount of harmonic distortion measured at 90dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at moderate listening levels.
Good value: <0.100
Noticeable difference: 0.1
:
3.884
Weighted THD @ 100
What it is: The overall amount of harmonic distortion measured at 100dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at loud listening levels.
Good value: <0.300
Noticeable difference: 0.1
:
9.634

The total harmonic distortion performance of the Liberty Air is decent. In the bass range, the THD isn’t elevated and is in within good limits. However, the THD gets a bit more elevated in the mid and especially treble range. The peak around 4KHz could make these frequencies sound sharp and impure. On the upside, there is no big jump in THD at 100dB SPL, which is good.

8.2

Isolation

Score components:

The Anker Liberty Air have great passive isolation. These in-ears don’t have an ANC feature and still isolate better than some ANC headphones we’ve reviewed. They create a good seal that blocks a good amount of noise and doesn’t leak. You’ll be able to use them on a bus or at the office and block out background noise. Since they also barely leak, you’ll be able to raise your listening volume without disturbing people surrounding you.

7.5 Noise Isolation
What it is: How much outside noise is blocked out by putting the headphones on.
When it matters: If the headphones are going to be used in a noisy envinronment (airplane, subway, etc.)
Score components:
Anker SoundCore Liberty Air Noise Isolation
Isolation Audio
What it is: The simulated noise isolation of the headphones, demonstrating how much outside noise is blocked out by putting the headphones on. This recording is created using an EQ and is not an actual recording. For headphones with ANC (active noise cancellation), the playback simulates the isolation with ANC enabled.
When it matters: When the headphones are going to be used in a noisy envinronment (airplane, subway, etc.)
:
Overall Attenuation
What it is: The overall amount of environmental noise reduction in dB.
When it matters: In loud envinronments like planes, trains, offices, etc.
Good value: <-20dB
Noticeable difference: 1dB
:
-23.29 dB
Bass
What it is: The overall amount of noise isolation in the bass range (20Hz-250Hz).
When it matters: When the outside noise is bass-heavy, like in airplanes.
Good value: <-15dB
Noticeable difference: 1dB
:
-11.28 dB
Mid
What it is: The overall amount of noise isolation in the mid-range (250Hz-2.5KHz).
When it matters: When the environment's noise is mid-heavy, like in an office.
Good value: <-15dB
Noticeable difference: 1dB
:
-22.9 dB
Treble
What it is: The overall amount of noise isolation in the treble range (2.5KHz-20KHz).
When it matters: When the environment's noise is treble-heavy. Although uncommon, areas with sharp sounds fall under this category.
Good value: <-30dB
Noticeable difference: 1dB
:
-36.8 dB
Self-Noise
What it is: The amount of noise created by the active electronics of the headphones (if applicable), measured from 300Hz-20KHz. Applies mostly to wireless and noise-cancelling headphones.
When it matters: If too loud, it could become distracting when listening to quiet material like podcasts and audiobooks.
Good value: <16dB
Noticeable difference: 1dB
:
20.33 dB

The noise isolation performance of the Liberty Air is good. Even if they don’t have any ANC feature, they passively block a good amount of ambient noise. They achieved about 11dB of isolation in the bass range, where engine rumbles sit, which is above-average. However, there seems to be a weak spot around the 200hz mark. In the mid-range, important for blocking ambient chatter, they achieved an isolation of 23dB, which is very good. In the treble range, occupied by S and T sounds and fan noises like A/C systems, they provide about 37dB of isolation, which is also very good.

9.7 Leakage
What it is: The amount of sound bleeding out of the headphones.
When it matters: When the listener doesn't want people around them (in office, recording studio, etc.) to hear what is being listened to.
Score components:
Anker SoundCore Liberty Air Leakage
Leakage Audio
What it is: The simulated sound leakage heard 1 foot away from the user, while the user is listening to a 100dB SPL signal. This recording is created using an EQ and is not an actual recording.
When it matters: When you don't want people to hear what you are listening to.
:
Overall Leakage @ 1ft
What it is: The amount of sound leakage heard 1 foot away from the user, while the user is listening to a 100dB SPL signal.
When it matters: When you don't want people hear what you are listening to.
Good value: <35dB
Noticeable difference: 1dB
:
22.81 dB

The leakage performance is excellent. The Liberty Air basically do not leak, so there's no need to worry about disturbing people around with your music, even if you listen at very loud volumes. With the music at 100dB SPL, the leakage at 1 foot away averages at 23dB SPL and peaks at 33dB SPL, which is roughly as loud as a very calm room and well under the noise floor of an average office.

6.2

Microphone

What it is: The microphone section shows the quality of speech capture and transmission by the mic, as well as how well the microphone under test handles noisy environments.
When it matters: For your speech to be transmitted to and understood properly by the listener, the microphone needs to have a good recording quality. If the environment the microphone is being used in is noisy, a microphone with a good noise handling performance would be needed as well.
Score components:
Integrated
What it is: The microphone integrated in the ear cup or ear bud of a wireless headphone.
When it matters: For calls, gaming and voice over IP software or for any other use of the microphone.
Good value: Yes
:
Yes
In-line
What it is: The microphone inside the in-line remote of audio cables for wired and wireless headsets.
When it matters: In-line microphone are usually better than integrated mics. If you need better recording quality and noise handling for calls, gaming and voice over IP software then use the audio cable of your wired or wireless headphone if it has an inline microphone.
Good value: Yes
:
No
Boom
What it is: A typically better microphone, that's also adjustable and extends so that the mic is closer to your mouth.
When it matters: Much better recording quality and noise handling than in-line or integrated mics. Primarily used for gaming and voice over IP software.
Good value: Yes
:
No
Detachable Boom
What it is: A boom mic that is detachable from the headset.
When it matters: If you want to use your headphone outdoors without the bulk and hassle of the Boom mic.
:
N/A

The performance of the Anker Liberty Air’s integrated mic is mediocre. Speech recorded or transmitted with the microphone will sound thin and lacking in brightness. However, it will be easily intelligible in quiet environments. In louder environments though, they will struggle to separate speech from background noise in loud situations.

5.6 Recording Quality
What it is: Microphone recording quality shows how natural, neutral, extended and intelligible speech would be with the device under test, in a quiet environment.
When it matters: A microphone with a good recording quality ensures that the person listening to you would hear a full, clear, and easily understandable speech. Therefore, it is important whenever a good quality of speech transmission and intelligibility is needed.
Score components:
Anker SoundCore Liberty Air Microphone Frequency Response
Recorded Speech
What it is: Actual audio recording of the headphone's microphone, recorded while placed on the dummy head, with speech being played back through the dummy head's mouth simulator.
When it matters: When a clean, full, and intelligible speech transmission is required.
:
LFE
What it is: Low-frequency extension shows how deep the bass response of the microphone is, and therefore, how deep and full your voice would sound to the listener. It is the lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters: LFE is not a big factor in speech intelligibility and even speech recorded with a mic that has an LFE of 500Hz could still be easily understood. Therefore, it is mostly important if you are concerned with how deep and full your voice would be heard.
Good value: <150Hz
Noticeable difference: 30Hz
:
386.08 Hz
FR Std. Dev.
What it is: Frequency Response Standard Deviation shows how accurately and balanced sound is captured by the microphone at each frequency. FR Std. Dev. is calculated between LFE and HFE, and the rest of the spectrum is ignored.
When it matters: A good frequency response is desired when a natural and neutral speech quality is desired. As opposed to HFE which is more a metric for speech intelligibility, frequency response could be considered as a metric for a natural and neutral sound.
Good value: >3.5dB
Noticeable difference: 0.5dB
:
2.93 dB
HFE
What it is: High-frequency extension is the highest frequency at which the frequency response reaches -3dB of the target response. It shows how extended the treble response of the microphone is.
When it matters: HFE is one the most important factors in speech intelligibility. The higher the HFE, the brighter, more open, and more extended the speech quality will be which makes it a lot easier to understand by the listener.
Good value: >8KHz
Noticeable difference: 1KHz
:
2597.24 Hz
Weighted THD
What it is: The unwanted frequencies (harmonics) produced alongside the intended frequencies, which cause deformation of an output signal compared to its input.
When it matters: When clean and pure sound reproduction is desired, though its effect is not as noticable as frequency response.
Good value: <1.5
Noticeable difference: 1.0
:
5.291
Gain
What it is: Shows how much louder the microphone can go above our reference loudness level. The gain value is reported relative to our reference level, which is 94dB at a distance of 5cm from the mouth.
When it matters: A microphone with a high gain is important when the input signal (speech) is very quiet. For example when whispering, or talking on the phone in a library.
Good value: >18dB
Noticeable difference: 3dB
:
45.4 dB

The Liberty Air’s microphone has a sub-par recording quality. The LFE (low-frequency extension) of 386Hz means speech recorded or transmitted will sound noticeably thin. The HFE (high-frequency extension) of 2.6KHz is poor and results in speech that is muffled and lacking in detail. It also negatively affects the intelligibility of speech but will still be understandable in very quiet environments.

6.7 Noise Handling
What it is: How well the microphone is able to separate speech from background noise, so that the transmission would include more voice and less noise.
When it matters: When a clean and intelligible speech transmission is desired in a noisy situation like talking on the phone on a busy street or on the bus.
Score components:
Anker SoundCore Liberty Air SpNR
Speech + Pink Noise :
Speech + Subway Noise :
SpNR
What it is: Speech to Noise Ratio is the difference in level between speech and background noise as heard by the listener
When it matters: If the microphone is going to be used in a noisy environment, it is important for it to be able to separate the speech from background noise, so the voice would be easily audible and understandable.
Good value: >24dB
Noticeable difference: 3dB
:
18.82 dB

The integrated microphone of the Anker Liberty Air is average at noise handling. In our SpNR test, they achieved a speech-to-noise ratio of about 19dB, indicating they are best suited for quiet and moderate environments. However, they will struggle to separate speech from ambient noise in loud situations.

5.4

Active Features

What it is: Headphones with active components that require a battery. This includes noise cancelling and wireless headphones that actively reduce noise or transmit audio via a wireless connection.
When it matters: How suitable the power and wireless specifications of an active headphone will be, depending on your listening habits. The range and/or discharge time of the active headphone you select will be important if you're often on the move or have long uninterrupted listening sessions.
Score components:

The Anker Liberty Air have a 4-hour battery life, but their case holds about 3 other charges, for an estimated bonus of 12 hours. They should last you a full workday if you take breaks to charge the headphones. They can also save power by entering a standby mode, which is convenient. Unfortunately, Anker doesn’t have a companion app for headphones for you to customize the sound to your liking.

6.0 Battery
What it is: The power source of your headphones. All headphones with active features have a battery that will deplete over time.
When it matters: To continue using the active features of your headphones. Some models lose features or switch off completely when the battery is drained, which limits what you can do with them until the next charge.
Battery Type
What it is: The type of battery that the headphones use. Usually AAA or embedded, Li-ion rechargeable batteries.
When it matters: When your headphones run out of power. Rechargeable batteries usually charge via the headphones Micro-USB port whereas AAA batteries have to be replaced or charged with an external device.
:
Rechargable
Battery Life
What it is: The amount of time it takes for a headphones' battery to be completely drained. Battery life will vary depending on the active features used and volume level.
When it matters: For active headphones that connect wirelessly, have noise cancellation or other audio-enhancing features, that cease to work once the battery is dead.
Good value: >10hrs
Noticeable difference: 0.5hrs
:
4.0 hrs
Charge Time
What it is: The amount of time your active headphones have to be connected to a power source to charge from 0 to a 100%. However, charging time will vary depending on your power source.
When it matters: To be able to use the active features of your headphones. Especially, wireless ones that completely switch off and need to be recharged when the battery is dead.
Good value: 2h or less
Noticeable difference: 0.25h
:
1.3 hrs
Power Saving Feature
What it is: A feature that turns off the headphones, after a set time, when they're not in use.
When it matters: To prolong battery life when the headphones are not being used, or if you forget to manually turn off your headphones.
:
Standby mode
Audio while charging
What it is: Some active headphones remain usable while charging. They continue to stream audio and do not disable other active features.
When it matters: This makes sure that your headphones's battery are not being drained when you're relatively close to a power source. However, this means wireless headphones will need a wired connection to the power source during the charging process.
:
No
Passive Playback
What it is: Active headphones that still work when all their active features are turned off or out of power.
When it matters: If you run out of power and do not have spare AA/AAA batteries or access to a power source to recharge your headphones.
:
No

The Anker Soundcore Liberty Air have a 4-hour battery life, which is about average for most truly wireless in-ears. This is slightly under the advertised 5 hours from Anker, so we also expect the advertised 20-hour total battery life with the case charges to be a bit lower (depending on your volume level). On the upside, the headphones have a power saving feature and will enter a standby mode if they are connected to a device, but no audio is playing. If the headphones are not connected to a device but are powered on, they will automatically turn off in 2 minutes.

0 App Support
What it is: The additional app provided to enhance your listening experience. They typically deliver a set of practical features that give you more control over the sound, noise cancelling and effects that the headphones produce.
When it matters: An app with a lot of features allows you to customize your listening experience to suit your taste and preferences. For example, additions like an equalizer can give you more bass or treble and room effects can simulate a bigger Soundstage in closed back headphones.
Score components: Subjectively assigned
App Name : N/A
iOS : N/A
Android : N/A
Mac OS : N/A
Windows : N/A
Equalizer
What it is: Parametric, graphic or preset sound profiles that slightly alter the frequency response.
When it matters: If you want to tailor, your listening experience. Depending on what you're listening to you may want more or less bass for some tracks or more mid-range for vocals-heavy audio.
:
N/A
ANC control
What it is: Control over the Active noise canceling technology. This could be either a simple on/off button, and adjustable slider or even adaptive self-regulating noise cancellation.
When it matters: If you're in an environment where you need to monitor your surroundings or completely isolate yourself from ambient noise.
:
N/A
Mic Control : N/A
Room effects
What it is: Room effects that enhance the audio quality to make it more immersive.
When it matters: If you want to further tweak your listening experience. Adding room effects, can simulate a more spacious Soundstage or deliver a surround sound-like feel.
:
N/A
Playback control
What it is: An in-app player that gives you access to play/stop, track skipping or volume controls directly with the app.
When it matters: It's a shortcut that allows you to control your audio without leaving the application.
:
N/A
Button Mapping : N/A
Surround Sound : N/A

These headphones do not have a companion app with customization options to enhance your listening experience.

2.9

Connectivity

What it is: The inputs and outputs of wired and wireless headphones, as well as their latency performance and range.
When it matters: To know how compatible your Bluetooth device, console or PC will be with your wired or wireless headset.
Score components:
  • 10% Bluetooth
  • 33% Wired
  • 10% Base/Dock
  • 22% Wireless Range
  • 25% Latency

The Anker Liberty Air are Bluetooth truly wireless in-ears. They have an amazing wireless range, and you might get even better results if your source supports Bluetooth version 5.0 too. Unfortunately, they can’t connect to two devices simultaneously which would have been useful if you often switch between your phone and office computer. They also have higher-than-average latency, which isn't suitable for watching video content and gaming. On the upside, their case gives you additional charges and extends their total battery life.

6.0 Bluetooth
What it is: Bluetooth support for wireless headphones.
When it matters: To connect wirelessly to Bluetooth sources like your phone, tablet, console, PC and TV.
Score components:
  • 80% Multi-Device Pairing
  • 20% NFC
  • <1% PS4 Compatible
  • <1% Xbox One Compatible
Bluetooth Version : 5.0
Multi-Device Pairing
What it is: A Bluetooth profile that allows some headphones to be simultaneously connected to multiple Bluetooth sources, and have full call and media support on both/all devices they are connected to.
When it matters: To quickly switch between your Bluetooth sources. For example, switching from your phone to your home or work PC and still have call and media support on both devices.
Good value: 2 devices.
:
No
NFC
What it is: Near Field Communication technology that allows you to quickly, pair your headphones with your Bluetooth and NFC-enabled device.
When it matters: This makes pairing with an NFC-enabled device a lot easier than the typical and often tedious hold-to-pair procedure that most wireless headphones have.
Good value: Yes
:
No
PS4 Compatible
What it is: Bluetooth compatibility with the PlayStation 4.
When it matters: To connect your headphones wirelessly with your PS4.
Good value: Audio + Microphone
:
No
Xbox One Compatible
What it is: Bluetooth compatibility with the Xbox One.
When it matters: To connect your headphones wirelessly with your Xbox one.
Good value: Audio + Microphone
:
No

These headphones support Bluetooth 5.0, so you might get even better results in wireless range and connection stability if your audio source supports Bluetooth 5.0 too. Unfortunately, they can only be connected to one device at a time and don’t support NFC. You can also use the right earbud alone if you want, but not the left one.

0 Wired
What it is: The type and compatibility of audio cables for wired and wireless headphones.
When it matters: For all devices with a regular audio jack (line-out) and also compatibility of the in-line remote/boom microphone with consoles and Personal computers.
Score components:
  • 13% Analog
  • 9% USB
  • 26% PS4 Compatible
  • 26% Xbox One Compatible
  • 26% PC Compatible
Cable Tested : N/A
Analog
What it is: A regular 1/8" TRS audio jack or a 1/4 or 1/16 TRS with a 1/8 TRS adapter.
When it matters: For all devices with a line out.
Good value: Yes
:
N/A
USB
What it is: A USB or USB adapter to connect to your devices for audio and microphone.
When it matters: A digital USB adapter usually offers a slight advantages over a regular audio jack, like a DAC, and amplifier module or software support and compatibility with PCs. However it may not be as compatible with consoles.
Good value: Yes
:
N/A
PS4 Compatible
What it is: PS4 compatibility with a regular 3 or 4 pin 1/8 TRS audio cable.
When it matters: When you want to use a wired headphone with your PS4
Good value: Audio + Microphone
:
N/A
Xbox One Compatible
What it is: Xbox One compatibility with a regular 3 or 4 pin 1/8 TRS audio cable.
When it matters: When you want to use a wired headphone with your Xbox One
Good value: Audio + Microphone
:
N/A
PC Compatible
What it is: PC compatibility with a regular 3 or 4 pin 1/8 TRS audio cable.
When it matters: When you want to use a wired headphone with your PC.
Good value: Audio + Microphone
:
N/A

These truly wireless headphones do not have a wired connection.

2.1 Base/Dock
What it is: The base station, dock or dongle transmitter of wireless headphones that receive data/audio via a proprietary frequency range.
When it matters: Knowing the inputs and outputs of the base/dock/dongle as well as its compatibility with consoles and Personal Computers. Also whether the base supports dock charging to easily recharge the headphones without any cables.
Score components:
  • 5% Optical Input
  • 22% Line In
  • 5% Line Out
  • 22% USB Input
  • 4% RCA Input
  • 9% PS4 Compatible
  • 9% Xbox One Compatible
  • 9% PC Compatible
  • 2% Power Supply
  • 13% Dock Charging
Wireless Type
What it is: The type of wireless connection used by the base station/dock to communicate with the headphones.
When it matters: For latency and range. For example Radio frequency has low latency but mediocre range when obstructed and proprietary docks have their own 2.x GHz or 5 GHz frequency which varies in performance.
:
N/A
Optical Input
What it is: Optical input for audio.
When it matters: Optical can carry a bit more data at faster speeds than typical wired connection which allows for more high quality, lossless audio.
Good value: Yes
:
No
Line In
What it is: The regular wired input via a 1/8" TRS audio jack.
When it matters: For any device that has a line out for audio transmission.
Good value: Yes
:
No
Line Out
What it is: A regular 1/8TRS audio jack output.
When it matters: If you need to share the audio source with other devices. A line out lets you connect other headphones or speakers to the dock/base station.
Good value: Yes
:
No
USB Input
What it is: A digital USB input instead of a typical 1/8 TRS line-in.
When it matters: A USB connection can provide both an audio input and power to the Dock or Base station.
:
No
RCA Input
What it is: Audio input using via an RCA connectors.
When it matters: Provides better stereo audio to the dock/base that's then transmitted to the headphones.
Good value: Yes
:
No
PS4 Compatible
What it is: Dock/Base station compatibility with the PlayStation 4.
When it matters: To be able to use all the features of the dock/base station with out losing audio or microphone capability.
Good value: Audio + Microphone
:
N/A
Xbox One Compatible
What it is: Dock/Base station compatibility with the Xbox One.
When it matters: To be able to use all the features of the dock/base station with out losing audio or microphone capability.
:
N/A
PC Compatible
What it is: Dock/Base station compatibility with your Personal Computer.
When it matters: To be able to use all the features of the dock/base station with out losing audio or microphone capability.
Good value: Audio + Microphone
:
N/A
Power Supply
What it is: The connector type of the power source.
When it matters: The accessibility of the power source. For example a power supply with USB/USB-C connects to multiple devices, PC , PS4, Xbox One or even with your regular phone charger whereas a A/C adapter is less common.
Good value: USB/USB-C
:
USB
Dock Charging
What it is: Charging the headphones via the dock/base station instead of a charging cable.
When it matters: It makes charging your headphones easier and gives you a sport to store your headphones when they are not in use.
Good value: Yes
:
Yes

The Anker Liberty Air comes with a case that acts as a charging station for the headphones. It can hold about 3 additional charges, but the case doesn’t have any inputs.

9.4 Wireless Range
What it is: Headphones that offer a cable-free listening experience over a wireless network, typically via Bluetooth or radio frequency.
When it matters: If you don't want to be limited by the length of an audio cable. This means having the freedom to move around in your home or office with a much greater range than an audio cable could provide, especially, if the Bluetooth source is heavy or difficult to carry. Note that wireless range also depends on your Bluetooth sources' signal strength which may vary from device to device or depending on your phone model.
Score components:
Obstructed Range
What it is: The range that the wireless headphones can reach before dropping any audio when the Bluetooth source was placed in another room. We test our obstructed range with a Moto E4 Plus. Results may vary depending on your phone model or Bluetooth source.
When it matters: If you can't or prefer not to carry your Bluetooth source on you, while listening to your audio in an indoor environment. Although, the obstructed wireless range will slightly depend on your home or office layout. Note that wireless range also depends on your Bluetooth sources' signal strength which may vary from device to device or depending on your phone model.
Good value: >35ft
Noticeable difference: 5ft
:
65 ft
Line of Sight Range
What it is: The range that the wireless headphones can reach before dropping any audio when in direct line of sight of the Bluetooth device.
When it matters: If you can't or prefer not to carry your Bluetooth source on you, while listening to your audio in a large and open environment.
Good value: 170ft or more
Noticeable difference: 10ft
:
167 ft

They have an amazing wireless range. With 65ft of wireless range, you’ll be able to leave your Bluetooth source at one spot and move around in a small apartment or office without hearing audio cuts due to limited range. You shouldn’t have too many problems, especially if you keep your audio source on you. These results may vary depending on your Bluetooth source.

0 Latency
What it is: How long it takes for audio to play through your headphones once the audio signal has been sent from a source.
When it matters: When gaming or watching movies. High latency means you will hear the audio much later than the images you see on screen.
Score components:
Default Latency
What it is: The Base RF latency or the default sub-band coding (SBC) of most Bluetooth headphones.
When it matters: When watching videos a high latency can cause sync issues between the images you see and the audio you hear.
Good value: 50ms or less
Noticeable difference: 15ms
:
295 ms
aptX Latency
What it is: An audio coding algorithm (Codec) that improves bit rate efficiency. It reduces latency and improves sound quality over Bluetooth.
When it matters: For better sound quality if your often streaming music over Bluetooth. Also it slightly improves latency when watching videos with wireless headphones.
Good value: 50ms or less
Noticeable difference: 15ms
:
N/A
aptX(LL) Latency
What it is: Low latency variation of aptX that significantly reduces sync issues between video and sound when using Bluetooth headphones.
When it matters: When watching videos or gaming latency is a lot more noticeable than just listening to music.
Good value: 50ms or less
Noticeable difference: 5ms
:
N/A

Their latency is too high to watch video content or for gaming. It is also higher than the average Bluetooth headphones that usually measure around 200-220ms of delay. On the upside, some video content apps like YouTube and Netflix seem to compensate for the delay so you shouldn’t notice it too much.

In the box

Anker SoundCore Liberty Air In the box Picture

  • Anker Liberty Air headphones
  • 4 tip sizes
  • Charging case
  • Charging cable
  • Manuals

Compared to other Headphones

Anker SoundCore Liberty Air Compare Picture

The Anker Liberty Air are very versatile truly wireless in-ears with a good audio reproduction. They have a lightweight design, but they look like a cheaper version of the Apple AirPods. They also have great isolation performance which is great for commuting and to use at the office. Unfortunately, the in-ear fit might be fatiguing after long listening sessions, and their latency is quite high for watching videos and gaming. They still offer great value when compared to other more expensive truly wireless headphones.   

Apple AirPods

The Anker Soundcore Liberty Air are better headphones than the Apple AirPods. They are more versatile thanks to their closed-back design that helps isolate more noise, which is useful for commuting and at the office. Their sound quality is also more accurate and follows our curve better. Thanks to the different tip sizes, they are also very stable in-ears for sports. On the other hand, the AirPods feel better made and have a better battery life. They also are more comfortable for most people. They are also more open-sounding due to their open-back design and have noticeably lower latency.                                

Anker Soundcore Spirit X

The Anker Soundcore Liberty Air are more versatile than the Anker Soundcore Spirit X. The truly wireless design of the Liberty Air gets rid of the cable and have a more portable design. Fans of bass may prefer the sound profile of the Spirit X, but the Liberty Air has better overall sound quality. The fit of the Liberty Air is also better for isolating ambient noise than the Spirit X. However, the Spirit X have a longer battery life, and their ear-hook design is very stable for sports. You also get a nice in-line remote with volume controls and are rated IPX7 while the Liberty Air is rated IPX5 for sweat and water resistance.

SoundPeats TrueFree

The Anker Soundcore Liberty Air are better truly wireless in-ears than the SoundPEATS TrueFree. Their sound profile is more neutral, but some may prefer the thumpy bass of the SoundPEATS. The Ankers also isolate a bit better, but not by much. The nice touch-sensitive control surface is better than the one-button layout of the TrueFree since you don’t have to push the headphones deeper inside your ear canal. The Anker case also has a lid that protects the headphones, which the SoundPEATS’ case is lacking. On the other hand, the TrueFree feel better made and their matte design isn’t as fingerprint prone as the Liberty Air’s glossy finish.

TREBLAB X5

The Anker SoundCore Liberty Air are better truly wireless headphones than the Treblab X5. Their build is less bulky and their audio reproduction is more accurate. Their fit also blocks more ambient noise and their battery life is slightly longer. However, their have higher latency than the X5 and they don’t have volume control on the earbuds, which the X5 have. The Treblab also come with fins for added stability during physical activities.

Skullcandy Push

The Anker Soundcore Liberty Air are better truly wireless in-ears than the Skullcandy Push. They have a more lightweight design, and their case is more portable. The sound quality is also more neutral, but some may prefer the heavy bass of the Push. The Ankers isolate more noise and are more versatile for everyday casual use. However, the Push have a better control scheme that offers volume control, which the Liberty Air lacks. They also have a longer battery life on one charge and maxed out our testing facility for wireless range.

Altec Lansing True Evo

The Anker SoundCore Liberty Air are better truly wireless headphones than the Altec Lansing True Evo. They have a more neutral sound profile and they isolate more ambient noise, making them a more versatile and better option for commuting. They also have a slightly better battery life and their case is more compact. They also support Bluetooth 5.0, which may translate into better range and connection stability. On the other hand, the True Evo come with a good amount of tip options and feel less cheap than the glossy and plasticky Ankers.

JBL Endurance Peak

The JBL Endurance Peak and the Anker SoundCore Liberty Air are both great truly wireless earbuds, but the Liberty Air are slightly better all-around. They’re both decently well-built and have similar batteries, lasting around 4 hours on a charge and charging under an hour and a half, though the Peak’s is a bit better since they have an auto-off timer. Both headphones also have a well-balanced, neutral sound profile, but the SoundCore Liberty Air have better treble. The JBL Endurance Peak have a sportier look with a better control scheme, but the Liberty Air have a more casual look, and are more comfortable with better isolation.

+ Show more

Conclusion

7.1Mixed Usage
What it is: This is the combination of the different use cases to evaluate how versatile the headphones are. Therefore an everyday headphone should be well-rounded enough to adapt to most situations and environments without significant losses in sound quality, design ergonomics or isolation.
Score components:
Above-average for mixed usage. There truly wireless in-ears are very versatile for everyday casual use. Critical listeners will appreciate their good audio reproduction for in-ears. They are portable and isolate a good amount of ambient noise, making them a good choice for commuting and at the office. Their design is very breathable, and the fit is stable for more intense physical activities. However, some may find the in-ear fit to be tiring after a while. Their latency is also too high to be suitable for watching videos and gaming.
7.3Critical Listening
What it is: The level of audio fidelity a headphone can reproduce. Therefore a balanced and true representation of bass, mids, treble, soundstage and imaging, as well as a comfortable listening experience, is essential for critical listening.
Score components:
Above-average for critical listening. They have good audio reproduction for critical listeners. They have a deep and accurate bass, a well-balanced mid-range and a great treble. However, there’s a slight recess in the mid-range that barely nudges the vocals to the back of the mix, and their treble is a bit uneven on sibilances as some may lack detail and others might sound slightly sharp. Additionally, fans of heavier sound profiles might find the bass of these headphones to be on the lighter side. Also, the in-ear design might not be the most comfortable for long listening sessions.
7.5Commute/Travel
What it is: How well the headphones handle the loud environments involved in commuting or traveling. Therefore your listening experience should be comfortable, hassle-free and as isolated from noise as possible.
Score components:
Good for commuting and traveling. Their design is very portable and easy to carry around. They also isolate a good amount of ambient noise, including the rumble of bus and airplane engines. Unfortunately, the in-ear fit might not be ideal for long rides and flights, and their 4-hour battery life might not last you a long trip. On the upside, they don’t leak much so you won’t have to worry about bothering people surrounding you with your music.
8.1Sports/Fitness
What it is: How well-adapted the headphones are, to use while doing sports or strenuous exercise. Therefore the headphones should not be too cumbersome and deliver a stable and comfortable listening experience.
Score components:
Great for sports. These truly wireless in-ears are very portable, and their fit is very stable if you can find the right tip size for your ears. They barely move around and shouldn’t pop out of your ears. Their design is also breathable, so you shouldn’t sweat more while wearing them.
7.4Office
What it is: How well the headphones can deliver a comfortable and isolated listening experience in an office-like environment. They should not leak much and should block the noise of a busy office.
Score components:
Above-average for the office. These headphones create a great seal that blocks a lot of ambient chatter which lets you concentrate on your music and tasks. They also don’t leak so colleagues shouldn’t hear what you’re listening to. Unfortunately, their battery life of one charge isn’t very long, and you’ll need to recharge them during the day with the case. The in-ear fit might not be comfortable for a whole workday so you might need to take breaks here and there if you feel fatigue.
5.6TV
Score components:
Sub-par for watching TV. Their amazing wireless will allow you to enjoy TV from your couch, but their latency is too high, and you might notice a delay between what you see and what your ear. Some video content apps like Netflix and YouTube do compensate a bit so you might notice it as much with their content.
4.6Gaming
Score components:
Poor for gaming. These headphones should not be used for gaming as their latency is too high and their microphone quality is sub-par if you play online with friends and teammates. Even if you’re not looking for a microphone, you shouldn’t use these headphones for video games.

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