1.On/off function;VOL Control;LED light 2.Fit all 3.5mm mobiles 3.Hands free with remote ... , EVO Shift 4G, Droid Incredible, Thunderbolt, HTC Bee, Surround, HTC Aria, HTC Desire, HTC Droid Eris, HTC Droid Incredible, HTC EVO ... Imagio, HTC Inspire 4G, HTC Legend, HTC Smart, HTC Touch Pro 2 (Sprint, Verizon), HTC Touch2, HTC Wildfire, Nexus One, T-Mobile ...