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Reviewed on Mar 13, 2018 , Marc Henney, Yannick Khong

JBL E45BT Wireless
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
6.6
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:
7.2
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:
6.5
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.
7.2
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.
6.6
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.
5.5
Gaming
Type : On-ear
Enclosure : Closed-Back
Wireless : Yes
Noise-Cancelling : No
Mic : Yes
Transducer : Dynamic

The JBL E45BT are decent mixed usage wireless headphones, similar to the JBL E55BT, but with an on-ear fit. They have a great battery life and wireless range and they sound good enough for most listeners with a satisfyingly well-balanced sound. Unfortunately, although their build quality is decent, it feels a bit cheap and they do not have the best isolation for noisy environments. They're also not as comfortable as the over-ear E55BT or E65BTNC.

Test Results
Design 6.5
Sound 7.3
Isolation 5.3
Microphone 6.1
Active Features 6.6
Connectivity 6.5
Pros
  • Above-average sound quality.
  • Great wireless range and battery life.
Cons
  • Sub-par noise isolation.
  • Plasticky build quality.
  • Bass delivery varies significantly across users. Sensitive to glasses.

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6.5

Design

Score components:

The JBL E45BT have a decent design and look almost identical to the JBL E55BT but with on-ear cups. Their smaller format makes them more portable and breathable. They also have an efficient control scheme and an above-average build quality, although they're slightly plasticky and not as durable as some of the other on-ears we've tested within their price range. The buttons especially feel a bit cheap, but they're responsive and easy-to-use. Unfortunately, the on-ear design is a bit less stable for running and much less comfortable than the over-ear fit of the E55BT.

Style

The JBL E45BT have the same design as the E55BT but with on-ear cups instead of over-ear ones. They share the same headband, frame, and button layout although the buttons on the 45BT feel just a bit cheaper. The only real difference is the size of their cups which make these headphones a bit more compact and protrude less when on your head. They both look decently well designed, if a bit plasticky, but should be good enough for most.

6.5 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
Weight : 0.4 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.
:
0.8 lbs

The JBL E45BT have an on-ear fit that is somewhat comfortable but not enough for long listening sessions. The small ear cups are decently padded but may constrain the top of your ears which coupled with the moderately tight fit, causes a bit more listening fatigue than the JBL E55BT.

7.0 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.
Ease of use : Okay
Feedback : Okay
Call/Music Control : Yes
Volume Control : Yes
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
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.
:
N/A
Additional Buttons : Bluetooth Sync

The JBL E45BT have the same control scheme as the E55BT. It is a simple and efficient 3 button set up for call/music, track skipping and volume controls as well as a dedicated Bluetooth button and power switch to turn the headphones on. The buttons feel a little plasticky and cheap but deliver decent feedback and are easy to use.

7.8 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:
Avg.Temp.Difference : 2.5 C

The JBL E45BT headphones have a decently breathable on-ear design. They do not fully cover your ears so the outer-ear will remain relatively cool while you exercise. They still trap a bit of heat and won't be as breathable as in-ears or earbuds but should be good enough if you do decide to use them for sports.

6.8 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:
L : 3.5 "
W : 6 "
H : 2.2 "
Volume : 46 Cu. Inches
Transmitter required : N/A

These headphones are decently portable and fold into a more compact format. They won't be the easiest to carry around on your person but they will easily fit into a handbag or backpack. Unfortunately, they do not come with case or pouch which is slightly disappointing.

0 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
Type : No case
L : N/A
W : N/A
H : N/A
Volume : N/A

The JBL E45BT do not come with a case or pouch.

6.5 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

The JBL E45BT have a decent build quality that's almost identical to the over-ear E55BT, and they have a more premium-looking design than the T450BT. The headband is flexible and has a thin metal frame for reinforcement. The ear cups are also fairly dense, making the headphones sturdy enough to handle a couple of accidental drops without getting damaged. Unfortunately, the plastic used in their build quality feels a bit cheap, which is most noticeable with the buttons on the right ear cup. They're a sturdy headset, but they just don't feel as durable as some of the competing options, like the Skullcandy Grind or the more recent JBL Everest 310

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

These headphones have a stable fit, and they're tight enough on the head for running, but may not as stable as the E55BT for some. They slipped more often during the testing procedure compared to the over-ear variant but maintained a stable fit for more casual activities. They should be decent enough for sports but won't be the best headphones if you have an intense workout with a lot of movement and physical activity.

Cable
Detachable : Yes
Length : 4.3 ft
Connection : 1/8" TRRS

The JBL E45BT come with a 1/8" TRRS audio cable with in-line controls and 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.)

The JBL E45BT is a decent sounding pair of closed-back on-ear headphones. They do not sound as well-balanced as the Marshall MID ANC but they have a well-balanced, deep, and punchy bass, which is great for bass-heavy genres, but their bass delivery is quite inconsistent and highly dependent on the user and their positioning.

They also have a good and neutral mid-range, but vocals and lead instruments tend to sound a little thin on them. Their treble is also quite well-balanced, but a tad hyped, which combined with the recessed mid-range, gives the headphones a slight V-shaped or "smiley face" sound profile. Additionally, and like most other on-ear headphones, they don't have a large and speaker-like soundstage.

8.7 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:
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
:
1.92 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
:
1.69 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
:
2.36 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
:
2.01 dB

The JBL E45BT have an excellent bass. Their LFE (low-frequency extension) is at 10Hz, indicating a very deep bass. Also, low-bass, mid-bass, and high-bass are virtually flat but consistently overemphasized by about 2dB. This means that the bass of the JBLs is deep, thumpy, and punchy enough to handle bass-heavy genres like EDM, Hip-hop and film scores. Also, their bass delivery varies noticeably across users, and is sensitive to the quality of fit, seal, and whether you wear glasses. The response here represents the average bass response and your experience may vary.

7.5 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:
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
:
3.38 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
:
-4.16 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
:
-2.69 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
:
-0.27 dB

The mid-range performance is good. The wide 4dB dip between 250Hz and 700Hz, thins out vocals and lead instruments a bit, by reducing the emphasis on their fundamental frequencies. As a side effect, this usually gives more room to the lower frequencies in the mix, which results in a more pronounced perception of kick and thump in bass. Additionally, the response above 700Hz is virtually flat and within 0.3dB of our neutral reference.

8.6 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:
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
:
2.76 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
:
1.08 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
:
0.37 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
:
-1.87 dB

The treble is great. The overall response is a bit uneven but well-balanced. The 5dB peak in low-treble brings out a bit of excess detail in vocals and lead instruments, and the 5dB peak at 7KHz, adds a bit of excess brightness and sibilance (S and T sounds) to the treble.

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.
6.5 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:
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
:
0.75 dB

The JBL E45BT have a mediocre frequency response consistency. In the bass range, they show more than 12dB of variance at 20Hz, which is significant and quite noticeable. This is mostly due to their on-ear design and sub-par ergonomics which affects their bass delivery and makes it highly dependent on the position of the headphones. However, their performance is a lot more consistent in the treble range.

7.6 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.
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
:
0.27
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
:
1.18
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
:
3.09
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
:
10.06

The imaging is good. Their weighted group delay is 0.27 which is within good limits. Also, the GD graph shows that the group delay response never quite crosses the audibility threshold. This indicates a tight bass and a transparent treble reproduction. In terms of driver matching, the L/R drivers of our test unit showed some mismatch in frequency and phase response. This could skew the stereo image a bit and have a negative effect on the placement of instruments in the image. However, the mismatch is not very large and the effect would be subtle.

4.4 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
:
3.64 dB
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
:
2.44 dB
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
:
4.03 dB
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
:
5.1
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
:
4.2
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 JBL E45BT has a sub-par soundstage. Due to their on-ear design, the drivers don't have enough distance to activate the resonances of the pinna (outer ear) like a loudspeaker, and that shows in the inadequate PRTF accuracy and size values. Also, they don't show a notch in the 10KHz region, further indicating that their soundstage will be perceived to be small and located inside the listener's head as opposed to in-front.

7.8 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:
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
:
0.886
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
:
1.965

The JBL E45BT have a good harmonic distortion performance. The overall amount of harmonic distortion at 90dB SPL is quite low and within good limits. At 100dB SPL however, there is a significant change in THD in high-bass and low-treble. This suggests that the JBL may struggle to produce a clean bass under maximum load, and that their treble may sound a bit harsh and fatiguing to some.

5.3

Isolation

Score components:

The JBL E45BT do not isolate well in loud, noisy environments. Their small on-ear cups can block some high frequencies, but do not prevent the low rumbling noise of an engine or the chatter of a lively office from seeping into your audio. This makes them less than ideal for commuting although they do perform slightly better than the E55BT. However, this is mostly due to the variance in getting a good seal with the over-ear vs. the on-ear cups. Unfortunately they also a have a bit of leakage at high volumes so they may be slightly distracting to those around you in quieter conditions if you play you music moderate-to-really loud.

4.8 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 environment (airplane, subway, etc.)
Score components:
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
:
-12.19 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
:
-0.35 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
:
-10.01 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
:
-27.06 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
:
20.51 dB

The isolation is sub-par. These headphones don't have active noise cancelling, and isolate passively. Because of that, they don't isolate in the bass range at all, meaning they will let in the low rumbling sounds of an airplane or bus engine. In the mid-range, important for blocking speech, they isolate by 10dB, which is decent. In the treble range, occupied by sharp sounds like S and Ts, they reduce outside noise by 27dB, which is above-average. You can also check out the more recent E65BTNC if you prefer over-ears and also need a bit more isolation for your commutes.

6.3 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:
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
:
43.24 dB

The leakage performance is below-average. The significant portion of the leakage, is spread from 500Hz to 4KHz, which is a relatively broad range. This means their leakage sounds fuller than that of in-ears and earbuds, but not as full as open-back headphones'. Also, the overall level of the leakage is not very loud, just above the noise floor of most apartment rooms. So if you listen to these headphones at moderate volumes, then the leakage shouldn't be a concern, even in an apartment setting.

6.1

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
:
Yes
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 integrated microphone of the JBL E45BT has below-average performance. In quiet environments, speech recorded or transmitted with it will sound rather thin, and noticeably muffled and lacking in detail. But it will still be relatively easy to understand. In noisy situations, however, they will struggle to separate speech from background noise, in moderate and loud environments like a busy street.

6.2 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:
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
:
281.0 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
:
5.0 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
:
3466.89 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
:
4.709
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
:
35.88 dB

The integrated microphone has a mediocre performance. The LFE (low-frequency extension) of 281Hz suggests that speech recorded/transmitted with this mic will sound rather thin. The HFE of 3.5KHz indicates that recorded speech will noticeably lack detail and presence. However, speech would still be decently intelligible with them in quiet environments.

6.1 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:
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
:
13.78 dB

The noise handling performance of the mic is below-average. In our SpNR test, they achieved a speech-to-noise ratio of 14dB, suggesting that the JBL E45BT are best suited for quiet environments, and may struggle in moderate or loud places.

6.6

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 JBL E45BT have a good battery life of 26 hours when playing continuously at average volumes. They also charge relatively quickly at 1.9 hours. This should be more than enough for most use cases, and they have passive playback so you can use an audio cable if the battery dies. Unfortunately, they have no app support for added customization and no auto-off timer to save power when they are not in use which is not ideal.

7.4 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
:
26 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
:
1.9 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.
:
No
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.
:
Yes

These headphones have a good battery life and decent charge time. They last quite a bit longer than the over-ear E55BT at 26 hours compared to 19 but unfortunately do not have an auto-off timer like the Everest Elite 700. On the upside, you can use them passively with the audio cable if the battery dies and while they charge. However, they do not support audio while charging when used wirelessly which is a little disappointing.

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

The E45BT do not support the JBL Headphones app.

6.5

Connectivity

What it is: The inputs and outputs of wired and wireless headphones, as well as their latency performance and range.
When it matters: When you want to know whether your headphones will be compatible with your various audio sources, like your smartphone, tablet, gaming consoles, PC, smart TV, amplifiers, etc.
Score components:

These headphones have a dedicated Bluetooth button for easy pairing with multiple devices but no NFC support. They can pair simultaneously with two Bluetooth sources and come with a versatile audio cable that has an in-line mic compatible with most consoles and PCs. They also have a great wireless range that should be more than enough for most use cases, but like most Bluetooth headphones, they have a bit too much latency for watching a lot of video content or gaming. 

6.8 Bluetooth
What it is: Bluetooth support for wireless headphones.
When it matters: When you want to connect your headphones wirelessly to a Bluetooth source, like your smartphone, tablet, PC or smart TV.
Score components:
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.
:
4.1
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.
:
2 Devices
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
:
No

They connect wirelessly via Bluetooth and can pair simultaneously with multiple devices. Unfortunately, they do not have NFC support, but on the upside, they are fairly easy to pair thanks to their dedicated Bluetooth pair button.

9.1 Wired
What it is: The type and compatibility of audio cables for wired and wireless headphones.
When it matters: When you want to use your headphones wired with a device that has a regular audio jack (line-out), like a smartphone, PC, or gaming console controller.
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.
:
Not OS specific
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
:
Yes
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
:
No
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
:
Audio + Microphone
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
:
Audio + Microphone
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
:
Audio + Microphone

The JBL E45BT come with a versatile cable that has an in-line mic compatible with most consoles and PCs. The in-line remote also has limited functionality for both iOS and Android and is not OS specific.

0 Base/Dock
What it is: The base station, dock, or dongle transmitter of wireless headphones that receive data/audio via a specific frequency range or wired headphones that have a proprietary amp.
When it matters: When you need to know which inputs and outputs the headphones support, so you can set them up with your home theatre system for gaming or watching movies.
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.
:
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
:
N/A
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
:
N/A
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
:
N/A
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.
:
N/A
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
:
N/A
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 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
:
N/A
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
:
N/A

These headphones do not have a base/dock. If you want a versatile headset with a base that you can also use wired check out the SteelSeries Arctis 7.

8.8 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: When 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 much greater range than an audio cable could provide, especially if the audio source is heavy or difficult to carry. Note that wireless range also depends on your audio source's signal strength, which may vary between devices.
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 source's signal strength which may vary from device to device or depending on your phone model.
Good value: >35ft
Noticeable difference: 5ft
:
49 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
:
163 ft

The JBL E45BT have a great wireless range. They reached up to 49ft when the Bluetooth source was obstructed and almost 165ft in direct line-of-sight. This should be more than enough for most use cases and office environments and will be a decent option if you have a fixed source like a TV or PC.

3.5 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. Note that latency also depends on the device and applications you use.
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 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
:
168 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 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
:
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: 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
:
N/A

These headphones like most Bluetooth headsets will not be ideal for watching movies. They have a bit less latency than the E55BT but If you need to watch a lot of video content, then use them wired, since they have practically no latency with the audio cable.

In the box

  • JBL E45BT Headphones
  • Audio cable
  • USB cable
  • Manuals

Compared to other Headphones

The JBL E45BT are decent wireless headphones for most use cases. They have a great range and battery life and an above-average sound. Their on-ear fit is not as comfortable as some of the other on-ear headphones we've tested. They also have a bit too much latency for gaming and watching movies, but they're versatile enough for sports and even for some critical listeners. See our recommendations for the best on-ear headphones, the best headphones under $100, and the best wireless headphones.

JBL E55BT Wireless

The JBL E55BT and E45BT are practically the same headphones, but the E55 are over-ears while the E45 are on-ears. They have very similar audio reproduction and are built the same way. However, the over-ear design is more comfortable for most and is steadier on the head for sports. On the other hand, it's not as breathable as the on-ear design of the E45BT. There are also more bass delivery inconsistencies with the over-ear E55BT, and they have noticeably shorter battery life and wireless range than the on-ear E45BT.

JBL T450BT Wireless

The JBL E45BT are better headphones than the JBL T450BT. The E45BT have a  more premium-looking design that's more durable than the T450BT. They also sound better and have a headphone jack, so you can use them wired if their battery dies or with your console controllers. The E45 also have a better battery life and can pair with 2 devices simultaneously, unlike the more budget T450BT. On the other hand, the T450BT are a bit more lightweight, portable, and stable for sports than the E45BT.

Sony WH-CH500 Wireless

The JBL E45BT are better headphones than the Sony WH-CH500 in every way. They have better sound quality, build quality, sound quality, battery life, can be used wired even if the battery is dead, and they support full multi-device pairing. On the other hand, the Sonys have slightly better feedback on their control scheme and have NFC support for easier pairing, with better wireless range. The Sonys are usually cheaper than the JBL.

JBL Everest 310 Wireless

The JBL Everest 310 and JBL E45BT are very similar on-ear headphones. Both have a sound profile that is better suited for bass-heavy genres due to their recessed mid-range. However, the Everest model feels slightly better-built than the E45BT. They also isolate more noise due to their cups covering the ear more. On the other hand, the E45BT have slightly lower latency, so you might not notice the delay as much on these. They are also noticeably more stable, which is good for sports. Also, the Everest 310 has a unique music sharing feature that lets you connect another pair of Bluetooth headphones to the Everest and listen to the same audio content.

Conclusion

6.6 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:
Decent for mixed-usage. The JBL E45BT have a good battery life, great wireless range, and an above-average sound quality. They're not the most comfortable headphones, and their build quality feels a bit plasticky, but they're a good option for most use cases. However, like most Bluetooth headphones they have a bit too much latency so they won't be ideal for gaming and home theater.
7.2 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:
Above-average for critical listening. The JBL E45BT have a good bass that doesn't drown instruments and vocals, and a decent reproduction of higher frequencies that's not too sharp. Unfortunately, their soundstage is sub-par, due to their closed-back on-ear design, and they're a bit inconsistent in the bass range.
6.5 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.
Average for commuting. They're lightweight, easy-to-use, and decently portable. However, they do not block a lot of noise for busy city commutes, and their on-ear design is not as comfortable as the E55BT.
7.2 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.
Above-average for sports. They're lightweight, breathable and tight enough to stay on your head when jogging. Their wireless design also makes them less likely to fall because the audio cable got hooked on something, and they have a decently efficient control scheme. However, they're not as stable as the E55BT and won't be the most portable headphones for more intense workout routines which may hinder your movements.
6.6 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.
Decent for office use. The JBL E45BT have a long battery life and a decent sound for hours of continuous listening but do not block a lot of noise. You may hear the chatter of a lively office and they leak a bit at high volumes, so you may distract some of your colleagues in quieter conditions.
Below-average for home theater use. The JBL E45BT have an above-average sound and have a great wireless range, but too much latency for watching movies and a lot of video content. They come with an audio cable which can alleviate some of the latency issues, but it's fairly short and won't be suitable for most home theater setups unless you have an extension cord.
5.5 Gaming
Sub-par for gaming. The JBL E45BT have a bit too much latency, a mediocre mic and no customization options. Also, they're not the most comfortable headphones to use for long gaming sessions but at least they come with a versatile audio cable that is compatible with most console controllers and PCs.

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