Features: 1) Excellent sound quality with D.S.P. solution for echo cancellation and noise suppression 2) Versatile function key for pairing, one-touch answer, call rejection, power on / off, last number redial, voice activation (subjects to voice activation enabled phones) 3) Automatic bluetooth re-connection 4) LED indicate, volume control 5) With 5 in 1 charge function (compatible with most of the major mobile phones with Bluetooth of the series of Nokia, Motorola, Samsung, Siemens, and Sony-Ericsson