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Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
Top 10%1,180 points
Top 10%
Top 4%1,264 points
Top 4%
Top 41%770 points
Top 41%
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
Top specs and features

Bose QuietComfort 35 II vs Sennheiser HD 4.50 BTNC vs Sony MDR-7520: 33 facts in comparison

1. lowest frequency

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
10Hz
Sony MH1CBLK: 1Hz
18Hz
5Hz

2. has sound isolation/passive noise reduction

The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
45% have it

3. weight

309g
Sony MDR-EX150AP: 3g
221.1g
269g

4. has a neodymium magnet

Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. They also have more bass and clear high notes.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
36% have it

5. sound pressure level

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
90dB/mW
AKG K553 Pro: 144dB/mW
113dB/mW
108dB/mW

6. no battery needed

This device works without batteries. It weighs less and you don't have to worry about recharging or replacing the battery.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
67% have it

7. has a detachable cable

With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
38% have it

8. has stereo speakers

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
75% have it

9. has a tangle free cable

The cable is designed to minimize tangling.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
24% have it

10. can be folded

Folding devices are good for transporting as they take up less space in your bag.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
31% have it

11. can be used as a headset

A headset is one headphone or pair with a built-in microphone. Headsets can be used for applications which require communication i.e. Skype, games with voice chat, mobile phones etc.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
45% have it

12. Can be used wirelessly

Wireless devices allow users more freedom of movement.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
25% have it

13. has active noise canceling/noise reduction

This type of device allows you to listen at lower volume levels, causing less ear fatigue as you don't have to crank up the volume to overcome background noise. Ideal for plane rides and morning commutes.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
14% have it

14. has an over-the-ear form

Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
39% have it

15. travel bag is included

The device comes with its own special case or pouch, which is useful for safe transportation.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
64% have it

16. control panel placed on a device

There is a control panel on the device body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
18% have it

17. has included ear pads

Allows you to change ear pads without buying new ones.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
44% have it

18. has an L-shaped plug

An L-shaped plug is better if the jack is on the left or right side of the device, so that the cable isn't bent, and is less likely to break when the device is in your pocket.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
30% have it

19. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
49% have it

20. has a 3.5mm male connector

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
81% have it

21. has a battery level indicator

An indicator shows you when the device has low battery.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
16% have it

22. has a rechargeable battery

The battery can be recharged and used over again.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
19% have it

23. sweat resistant

Resistance to sweat makes it ideal for use while doing sports.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
13% have it

24. cable length

A long cable ensures more freedom of movement.
1.2m
Pioneer SE-A1000: 6m
1.4m
3m

25. has a noise canceling microphone

These microphones are designed to filter out background noise from the desired sound. Especially useful in noisy environments.
Bose QuietComfort 35 II
Sennheiser HD 4.50 BTNC
Sony MDR-7520
4% have it

Top 10 headphones

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