With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.
3.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.
4.Has an L-shaped plug
vs No (68% don't have it)
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.
5.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.