Feature:

PC-to-PC and PC-to-phone operation 
Driver built-in, no need addtional driver
USB1.1 compatible, no need sound card.
No external power required

Complies with H.323, MGCP, SIP protocol
Caller ID function of VoIP calls

Latest vogue of of the cellular phone type design, the hand feeling good, three kinds of color choice( black, silvery, blue)

Echo cancellation, noise reduction

Full duplex communication

Application support: skype / MSN / Netmeeting / Messenger, Mediaring, Net2phone, Dialpad

Customized hand phone casing designs available