There is a control panel on the cable, so you can easily operate the device without having to interact with it.
60% have it
10. no battery needed
This device works without batteries. It weighs less and you don't have to worry about recharging or replacing the battery.
75% have it
11. 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.
88% 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.
99% have it
13. number of microphones
More microphones result in better sound quality and enable the device to filter out background noise.