1) Complaint with the USB 2.0 specification
2) Complaint with the USB 1.0 Audio Device Class Specification
3) Compliant with USB HID 1.1 class specification
4) USB bus powered mode requires no external power
5) Connectors: USB Type A stereo output connector mono microphone input connector
6) LED indicators: activity microphone mute status
7) No driver required for Windows 98 SE/ME/2000/XP/2003/VISTA/Linux/MAC OS