Table of Contents
Top
Main Differences
Design
1. Style
2. Comfort
3. Controls
4. Breathability
5. Portability
6. Case
7. Build Quality
8. Stability
9. Cable
10. Top
11. Headshots 1
12. Headshots 2
Sound
Isolation
1. Noise Isolation
2. Leakage
Microphone
1. Recording Quality
2. Noise Handling
Active Features
1. Battery
2. App Support
Connectivity
1. Bluetooth
2. Wired
3. Base/Dock
4. Wireless Range
5. Latency
In the box
Compared

Sennheiser HD1 In-Ear / Momentum In-Ear vs Jaybird X3 Wireless
Side-by-Side Comparison

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Test Bench
Picture
Review
Overview


250 OHM
3.5mm + USB
32 OHM
Alpha
Alpha Green
Analog
Android, Black
Android, Blue
Android, Ivory
Android, Red
Android, Silver
Android, White
Aqua
Argilla Grey
Asphalt Grey
Beige
Black
Black
Black Leather
Black Metallic
Black Night
Black croc
Black single driver
Black stitched
Black, PC
Black, PS4
Black, Xbox One
Black, mic
Black, no mic
Black,Titanium
Black-Grey
Black-Red
Black/Blue
Black/Flash
Black/Green
Black/Red
Blackout
Blaze
Blue
Blue
Blue, PS4
Blue, no mic
Bone
Bordeaux
Break Blue
Brick Red
Bright Orange
Bronze
Brown
Brown croc
Calx
Camel leather
Camo
Canyon Red
Carbon
Charcoal Sand
Charge
Chrome
Citron
Clay
Clear
Clear Black
Clear Purple
Clear, single driver
Colorful, mic
Colorful, no mic
Console Edition
Copper
Coral Orange
Cyan
Cyan, mic
Cyan, no mic
Dark Green
Dark Red
Dark Tan
Drift
Electroplated black
Fire
Flash Blue
Forest Green
Fresh Mint
Gloss Black
Gloss White
Gold
Gold Beige
Graphite Black
Graphite Brown
Gray
Gray, Cyan
Gray, Lime
Gray, SE
Green
Green croc
Green, Xbox One
Grey
Gun Metal
Gunmetal
Ice
Indigo Blue
Ivory
Ivory
Ivory stitched
Jet
Kahki
Leopard
Light Red
Light silver
Limestone
Lunar Grey
Matte Black
Matte White
Metallic Sky
Midnight
Midnight Blue
Mineral Blue
Mint
Mint Green
Mocha
Moss
Natural
Navy
Navy
Navy Blue
Nightfall Blue
Nimbus Gray
No Controls
Ocean
Ocean Blue
Orange
PC/PS4
PC/Xbox One
PS4
PS4, MixAmp
Pine
Pink
Plaid
Plum
Psychotropical Teal
Purple
Purple, mic
Purple, no mic
Red
Red croc
Red, no mic
Rose Gold
Royal Blue
SE
Satin Silver
Shadow
Shock Yellow
Silver
Siren Red
Slate Grey
Snake
Solid Black
Space Gray
Sparta White
Stone
Storm
Storm Gray/Glacier
Storm Metallic
Tan
Teal
Titanium
Titanium Black
Titanium Black
Titanium,iOS
USB/Analog
Ultra Violet
Violet
White
White, PS4
White, Xbox One
White/Blue
White/Green
With charging case
With wireless charging case
Xbox One
Xbox One, MixAmp
Yellow
iOS Blue
iOS, Black
iOS, Black
iOS, Brown
iOS, Green
iOS, Ivory
iOS, Red
iOS, White
iOS,White

Main Differences
Threshold

Full Comparison

- Ratings

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: 25% Critical Listening 25% Office 25% Commute/Travel 10% Sports/Fitness 9% Gaming 6% TV Score distribution: - SAMPLE - Become an Insider to see distribution charts
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: 80% Sound 10% Build Quality 7% Comfort 3% Breathability Score distribution: - SAMPLE - Become an Insider to see distribution charts See our best recommendations
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: 24% Noise Isolation 14% Sound 11% Portability 10% Comfort 9% Build Quality 9% Battery 6% Wireless Range 4% Controls 4% Breathability 4% Leakage 3% Microphone 1% Multi-Device Pairing 1% NFC Pairing Score distribution: - SAMPLE - Become an Insider to see distribution charts See our best recommendations
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: 24% Stability 23% Portability 11% Sound 10% Breathability 8% Comfort 6% Wireless Range 5% Controls 5% Battery 4% Noise Isolation 4% Leakage Score distribution: - SAMPLE - Become an Insider to see distribution charts See our best recommendations
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: 24% Comfort 21% Sound 16% Noise Isolation 8% Leakage 7% Battery 7% Wireless Range 5% Breathability 4% Build Quality 4% Microphone 2% Controls <1% Multi-Device Pairing <1% USB Audio <1% PC Compatible <1% Latency <1% Analog Audio <1% Line In <1% USB Input <1% PC Compatible <1% Power Supply <1% Dock Charging Score distribution: - SAMPLE - Become an Insider to see distribution charts See our best recommendations
TV Score components: 22% Sound 17% Comfort 15% Default Latency 10% Wireless Range 5% Breathability 5% Build Quality 4% Optical Input 3% Battery 3% Analog Audio 3% Leakage 2% Noise Isolation 2% RCA Input 2% Multi-Device Pairing 2% Line In 2% Line Out 2% Power Supply 1% Dock Charging Score distribution: - SAMPLE - Become an Insider to see distribution charts See our best recommendations
Gaming Score components: 20% Sound 20% Default Latency 15% Comfort 12% Microphone 5% Breathability 5% Battery 5% Base/Dock 3% Build Quality 3% Wireless Range 3% Microphone Control 2% Channel Mixing 2% Wired 2% Volume Control 2% App Support 1% Bluetooth Score distribution: - SAMPLE - Become an Insider to see distribution charts See our best recommendations

- Main

Type
Enclosure
Wireless
Noise-Cancelling
Mic
Transducer

- Design

Design Picture

- Style

Design Picture 2

- Comfort

Comfort Picture
Weight
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. Learn more

- Controls

Controls Picture
Ease of use
Feedback
Call/Music Control
Volume Control
Microphone Control
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. Learn more
Noise Canceling Control
Talk-Through What it is: A transparency feature that uses the mics of the headphones to let you hear what is doing on around you without removing them. When it matters: If you want to be aware of what is going on around you without removing your headphones or while still listening to your audio. This is typically a feature for the noise canceling headphones and passively isolating in-ears that block a lot of noise. Good value: Yes or adjustable. Learn more
Additional Buttons

- Breathability

Breathability After Picture
Avg.Temp.Difference

- Portability

Portability Picture
L
W
H
Volume
Transmitter required

- Case

Case Picture
Type
L
W
H
Volume

- Build Quality

Build Quality Picture

- Stability

Stability Picture

- Cable

Cable Picture
Detachable
Length
Connection

- Top

Top Picture

- Headshots 1

Angled Picture
Side Picture

- Headshots 2

Front Picture
Rear Picture

- Sound

Frequency Response

- Bass

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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Learn more
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 Learn more
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 Learn more

- Mid

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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Learn more
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 Learn more
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 Learn more

- Treble

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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Learn more
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 Learn more
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 Learn more

- Raw Frequency Response

Raw FR L
Raw FR R

- Frequency Response Consistency

Consistency L
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more

- Imaging

Group Delay
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 quality control and ergonomics. When it matters: When a properly balanced stereo image and good quality control 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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 quality controls and ergonomics. When it matters: When an even and stable stereo image, as well as a good quality control, is desired. A poor score indicates there may be 'holes' in the stereo image at certain frequencies. Good value: <2 Noticeable difference: 0.1 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 quality control and ergonomics. When it matters: When an even and stable stereo image, as well as a good quality control is desired. A poor score indicates there may be inaccuracies in the stereo image reproduction at certain frequencies. Good value: <16 Noticeable difference: 3 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more

- Soundstage

PRTF
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Learn more
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 Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more

- Total Harmonic Distortion

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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more

- Isolation

- Noise Isolation

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.) Learn more
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 Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more

- Leakage

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. Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more

- Microphone

Integrated

In-line

Boom

Detachable Boom

- Recording Quality

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. Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more

- Noise Handling

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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more

- Active Features

- Battery

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. Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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. Learn more
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. Learn more
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. Learn more

- App Support

App Picture
App Name
iOS
Android
Mac OS
Windows
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. Learn more
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. Learn more
Mic Control
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. Learn more
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. Learn more
Button Mapping
Surround Sound

- Connectivity

- Bluetooth

Bluetooth Version What it is: The version of Bluetooth that the headphones support. When it matters: Newer versions of Bluetooth, when paired with devices that support the same version, may have improved latency and wireless range performance. Learn more
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. Learn more
NFC Pairing 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 Learn more

- Wired

OS Compatibility What it is: Testing the headphones' cable to see which operating system it works with. When it matters: Some wired headphones don't support all operating systems so this allows you to check if the headphones will work with your device. Learn more
Analog Audio What it is: When your headphones can play analog media using a standard 1/8" TRS audio jack. Includes using a 1/4" or 1/16" TRS with a 1/8" TRS adapter. When it matters: For listening to music with devices that have a standard 1/8" TRS audio jack, like an MP3 player, tablet, smartphone or PC. Good value: Yes Learn more
USB Audio What it is: When your headphones can play digital media using a standard USB connector. When it matters: For listening to music on a PC. A digital USB adapter can offer some advantages over a regular audio jack, like a DAC or added software support. Good value: Yes Learn more
PS4 Compatible What it is: PS4 compatibility with a regular 1/8" TRS or TRRS audio cable. When it matters: When you want to use a wired headphone with your PS4 controller. Good value: Audio + Microphone Learn more
Xbox One Compatible What it is: Xbox One compatibility with a regular 1/8" TRS or TRRS audio cable. When it matters: When you want to use a wired headphone with your Xbox One controller. Good value: Audio + Microphone Learn more
PC Compatible What it is: PC compatibility with a regular 1/8" TRS or TRRS audio cable. When it matters: When you want to use a wired headphone with your PC. Good value: Audio + Microphone Learn more

- Base/Dock

Type What it is: The type of base/dock the headphones use, whether a USB dongle, charging case or docking station. Wired or wireless. When it matters: Larger docking stations tend to have more controls and sometimes even customization options while smaller USB dongles are more portable. Charging cases allow you to keep your earbuds charged on-the-go. Learn more
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 Learn more
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 Learn more
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 Learn more
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. Learn more
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 Learn more
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 Learn more
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. Learn more
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 Learn more
Power Supply What it is: The connector type of the power source for the base/dock. 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 an AC adapter is less common. Good value: USB/USB-C Learn more
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 Learn more

- Wireless Range

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 source's signal strength which may vary from device to device or depending on your phone model. Good value: >35ft Noticeable difference: 5ft Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more

- Latency

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 wirelessly, high latency can cause sync issues between the images you see and the audio you hear. Good value: 50 ms or less Noticeable difference: 15 ms Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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 you often stream music over Bluetooth. It also slightly improves latency when watching videos with wireless headphones. Good value: 50 ms or less Noticeable difference: 15 ms Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more
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: Latency is a lot more noticeable when watching videos or gaming than when just listening to music. Good value: 50 ms or less Noticeable difference: 5 ms Score distribution: - SAMPLE - Become an Insider to see distribution charts Learn more

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Sennheiser HD1 In-Ear / Momentum In-Ear vs Jaybird X3 Wireless
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