1. PC-to-PC and PC-to-phone operation; 2. Free-hand function 3. Driver built-in, plug and play; 4. USB1.1 compatible; 5. No need sound card; 6. No external power required; 7. Complies with H.323, MGCP, SIP protocol; 8. Echo cancellation... - Update: 2007-09-07

Description: This is a high quality optical USB mouse with VoIP phone features. It can transform into a VoIP phone with just a flip of the cover. The fully functional keypad and the LCD screen enable you to make/receive VoIP calls even easier. Ju... - Update: 2007-09-07