Feature:
PC-to-PC and PC-to-phone operation
Driver built-in, plug and play
USB1.1 compatible, no need sound card
No external power required
Complies with H. 323, MGCP, SIP protocol
Echo cancellation, noise reduction
Full duplex communication
Application support: Netmeeting /Messenger, Mediaring, Net2phone, Dialpad
Key-in tone function
Carton:
Weight: 55mm*50mm*26mm 6.2 kg ( 40pcs )