... 1,Excellent sound quality 2,Min Size 3,Lightweight, 4,Mobile enhancement DF200 ---The perfect stereo headset of the year! ... Support A2DP profile Compatible with iPhone,Samsung,HTC and most mobiles. Mirror cover and Metal rim: more elegant design Exceptional Stereo ... volume up, volume down, mute, unmute, transfer calls between phone and headset, call waiting, call reject*, last number redial* etc. ...