Model:  I-2300
Smart Conference Phone System (TeleConference I-2300), 
Patented 2nd Generation Algorithm, 
World No.1 Sound Quality and Sound Effects
Can integrate with USB

Support MS XP/Vista/WIN 7/ WIN 8,etc, operating system.

A combination of video conference and audio conference, realize three party conference.

Echo canceller, 

High audio quality speaker,

Microphone with high automatic gain control function, 

Enable conference participants to talk free