1) Comply with USB 2.0 Full-speed (12Mbps) specification

2) Complaint with USB Audio device class specification 1.0

3) Complaint with USB HID Class Specification 1.1

4) USB bus-powered mode, no external power required

5) Connectors: USB Type-A, Stereo output jack, Mono microphone input jack

6) Functional keys: Microphone-Mute, Speaker-Mute, Volume-Up, Volume-Down