External USB Sound Card USB to Jack 3.5mm Headphones Audio Adapter Mic Sound Card for PC Computer

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.

7.And with the Xear 3D Sound Simulation 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

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

11.Size: 57 x 25 x 12mm

12.Weight: 25g

13.System:Windows 2000 / XP / Server 2003 / Vista, Linux