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AKG K551
Plantronics Backbeat Fit
Top 52%632 points
Top 52%
Top 51%641 points
Top 51%
AKG K551
Plantronics Backbeat Fit
Top specs and features

AKG K551 vs Plantronics Backbeat Fit: 20 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

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
50Hz

3. weight

281g lighter.
305g
Sony MDR-EX150AP: 3g
24g

4. 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 K551
Plantronics Backbeat Fit
45% have it

5. 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
105dB/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.
AKG K551
Plantronics Backbeat Fit
69% have it

7. can be folded

Folding devices are good for transporting as they take up less space in your bag.
AKG K551
Plantronics Backbeat Fit
31% 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.
AKG K551
Plantronics Backbeat Fit
76% have it

9. Can be used wirelessly

Wireless devices allow users more freedom of movement.
AKG K551
Plantronics Backbeat Fit
23% have it

10. driver unit size

The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.
50mm
Audeze LCD2 Classic: 106mm
6mm

11. 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 K551
Plantronics Backbeat Fit
18% have it

12. travel bag is included

The device comes with its own special case or pouch, which is useful for safe transportation.
AKG K551
Plantronics Backbeat Fit
64% have it

13. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.
AKG K551
Plantronics Backbeat Fit
50% have it

14. 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 K551
Plantronics Backbeat Fit
82% have it

15. number of microphones

More microphones result in better sound quality and enable the device to filter out background noise.
1
Parrot Zik Sport: 8
1

16. sweat resistant

Resistance to sweat makes it ideal for use while doing sports.
AKG K551
Plantronics Backbeat Fit
13% have it

17. has an on-ear form

This device comfortably rests on top of your outer ears. As it doesn't block out everything from the outside world, it's preferred in places like office environments and recommended for outdoor activities.
AKG K551
Plantronics Backbeat Fit
23% have it

18. Weather sealed

Device is protected with extra seals to prevent failures due to any kind of weather.
AKG K551
Plantronics Backbeat Fit
5% have it

19. has an earbud form

The earbud form is ultracompact and lightweight, with little or no interference with earrings, spectacles, hats, or hairstyles. For some people it is more comfortable than in-ear form.
AKG K551
Plantronics Backbeat Fit
5% have it

20. Is dustproof and water resistant

Dustproof/water resistant at depth equal to or greater than 1 meter.
AKG K551
Plantronics Backbeat Fit
1% have it

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