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.
15% have it
16. Can be used wirelessly
Wireless devices allow users more freedom of movement.
17% have it
17. number of microphones
More microphones result in better sound quality and enable the device to filter out background noise.
Parrot Zik Sport: 8
18. Bluetooth version
Urbanista Rome: 4.2
19. has a 3.5mm male connector
A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
86% have it
20. cable length
A long cable ensures more freedom of movement.
Pioneer SE-A1000: 6m
21. 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.
23% have it
22. has a rechargeable battery
The battery can be recharged and used over again.
10% have it
23. maximum bluetooth range
The device can connect at a greater distance via Bluetooth or infrared to another device.
Plantronics BackBeat Pro 2 SE: 100m
24. supports Bluetooth pairing using NFC
Device supports fast Bluetooth pairing using NFC so it can communicate with other devices over Bluetooth. You can fastly pair devices without entering a code by simply holding one device next to the device with which it is to be paired.
3% have it
25. longer battery life
The device's battery life (when in use) as given by the manufacturer. With a longer battery life you have to charge the device less often.