100% New. 

LED indicators: Microphone-Mute Status， Activity 

USB2.0 Full-Speed ( 12Mbps ) Specification 

USB HID Class Specification 1.1 

USB Audio Device Class Specification 1.0. USB bus-powered， no external power required. 

The USB 2.0 External 7.1-Channel Audio Sound Card Adapter. It can work with either desktop or laptop. And with the Xear 3D Sound Simulation software， it extends stereo speaker or earphone to 7.1 channel environment， giving high quality sound enjoyment. 

Connectors: USB Type A， Stereo output jack， mono microphone input jack 

Xear 3D virtual 7.1 channel sound simulation software for Windows XP / Vista is included 

Functions keys: Microphone-Mute， Speaker-Mute， Volume-Up and Volume-Down 

Size: 57 x 25 x 12mm

Weight: 15g

System:Win

dows 2000 / XP / Server 2003 / Vista，win7， Linux，

Mac OS