A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
87% 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.
22% have it
18. diaphragm size
The diaphragm moves air back and forth to create sound. The bigger the diaphragm, the more bass it can produce.