1.Low noise ,digital tone, exceed long distance 2.Strong telephone keyboard to receive & dial out call conveniently 3.Dial hand-free, LCD glass screen night function 4.Automatic shake-ring when skype call coming 5.Adjust the coming call shake vo... - Update: 2009-07-21

1) USB 2.0 supported 2) With HID (Human interface Device) 3) With PID (Physical interface Device) 4) ALED to indicate power and linking status 5) Support SIP, H. 323, MGCP,IAX2 6) Supports Skype, 6) MSN, Xpro, Net2Phone, X-Pro, X-lite, eyeBeam,... - Update: 2009-07-21