Improved Call Comfort, Allows access to phone functions while making calls, Eliminates over 99% of absorbed phone radiation, Turns your tablet computer into a telephone via Skype or VOIP applications. Noice Reduction System. Pick up/Hang up Button. Comes with a 3.5mm plug (compatible with Iphone, Ipad, PC's, MP3 Players, Smartphones, etc). Luxurious soft touch paint treatment. High Quality speaker and microphone.