USB External 7.1 Channel CH Virtual Audio Sound Card Adapter

Complaint with USB HID Class Specification 1.1
USB bus-powered mode,no external power required
Connectors:USB Type-A,Stereo output jack,Mono microphone-input jack
Function keys:Microphone-Mute,speaker-mute,volume-up,volume-down
LED indicators:Microphone-Mute Status,activity
Driverless-No driver required for Windows 98SE/ME/2000/XP/Server 2003/Vista,Windows7,Linux,MacOS

compliant with usb 2.0 full speed (12mbps) specification

-compliant with usb audio device bclass specification  1.0

compliant wit USB HID class specification 1.1

usb bus power mode no external power required