Specifications: 
1) Bluetooth Class 2, Version 1.1/1.2
2) Excellent sound quality with D.S.P. Solution for echo cancellation and 
    noise suppression
3) Versatile function key for: pairing; one-touch answer; call rejection; 
    power on / off; last number redial; voice activation (hang subject to voice 
    activation enabled phones)
4) Automatic Bluetooth re-connection
5) LED indicate, Volume control
6) With 5 in 1 charge function (compatible with most of the major Mobile 
    phones with Bluetooth of the series of Nokia, Motorola, Samsung, 
    Siemens, SonyEricsson)