vs
vs
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AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
Top 46%2,274 points
Top 46%
Top 3%4,118 points
Top 3%
Top 9%3,879 points
Top 9%
Top 38%2,634 points
Top 38%
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
Top specs and features

AKG K 550 vs Plantronics BackBeat Pro 2 vs Sennheiser HD 4.40 BT vs Sennheiser IE80: 35 facts in comparison

1. highest frequency

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
28000Hz
Sony MDR-Z1R: 120000Hz
20000Hz
22000Hz
20000Hz

2. lowest frequency

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
12Hz
Sony MH1CBLK: 1Hz
20Hz
18Hz
10Hz

3. 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.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
44% have it

4. weight

305g
Sony MDR-EX150AP: 3g
289g
221.1g
5g

5. impedance

Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power.
32 Ohms
Flips Solo 2 Social: 4 Ohms
32 Ohms
18 Ohms
16 Ohms

6. 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.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
36% have it

7. sound pressure level

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
114dB/mW
AKG K553 Pro: 144dB/mW
93dB/mW
113dB/mW
125dB/mW

8. no battery needed

This device works without batteries. It weighs less and you don't have to worry about recharging or replacing the battery.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
66% have it

9. 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.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
39% have it

10. 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.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
76% have it

11. can be folded

Folding devices are good for transporting as they take up less space in your bag.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
31% have it

12. 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.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
47% 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.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
15% have it

14. has a tangle free cable

The cable is designed to minimize tangling.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
23% have it

15. Can be used wirelessly

Wireless devices allow users more freedom of movement.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
27% have it

16. 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.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
39% have it

17. 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.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
20% have it

18. travel bag is included

The device comes with its own special case or pouch, which is useful for safe transportation.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
64% have it

19. has included ear pads

Allows you to change ear pads without buying new ones.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
44% have it

20. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
48% have it

21. 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.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
30% have it

22. has a battery level indicator

An indicator shows you when the device has low battery.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
18% have it

23. has a 3.5mm male connector

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
80% have it

24. has a rechargeable battery

The battery can be recharged and used over again.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
21% have it

25. sweat resistant

Resistance to sweat makes it ideal for use while doing sports.
AKG K 550
Plantronics BackBeat Pro 2
Sennheiser HD 4.40 BT
Sennheiser IE80
14% have it

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