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.
2.Can be folded
vs No (70% don't have it)
Folding devices are good for transporting as they take up less space in your bag.
3.Has an over-the-ear form
vs No (58% don't have it)
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.
4.Has active noise canceling / noise reduction
vs No (87% don't have it)
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.
5.Has a removable battery
vs No (93% don't have it)
The battery is removable and can be replaced by the user if broken.