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2.LED indicators: Microphone-Mute Status, Activity
3.USB2.0 Full-Speed ( 12Mbps ) Specification
4.USB Class Specification 1.1
5.USB Audio Device Class Specification 1.0. USB bus-powered, no external power required.
6.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 7.software, it extends stereo speaker or earphone to 7.1 channel environment, giving high quality sound enjoyment.
8.Connectors: USB Type A, Stereo output jack, mono microphone input jack
9.Xear 3D virtual 7.1 channel sound simulation software for Windows XP / Vista is included
10.Functions keys: Microphone-Mute, Speaker-Mute, Volume-Up and Volume-Down
11.Size: 57 x 25 x 12mm
13.System:Windows 2000 / XP / Server 2003 / Vista, Linux, Mac OS
1 x usb sound card