Compliant with USB2.0 Full-speed (12Mbps) specification

Compliant with USB audio device class specification 1.0

USB bus-powered mode, no external power required

Connectors: USB Type-A, stereo 3.5mm output jack 

Control keys: Microphone mute, headset mute, volume+/-

LED indicators: Microphone-mute status 

Voice7.1 channel dynamic sound

No drive required for Windows 98 SE/ ME / 2000 / XP / Server 2003 / Vista, Linux and MacOS

Cable length: about 10cm