... Sound card 1, USB 6 Channel 5.1 External Sound Card 2, OS support: win98/xp/2000 / Vista USB Sound CardThe Vitrual 7.1CH USB Sound Card ... Type-A, Stereo output jack,Microphone-input jack 4. Functional keys: Microphone-Mute Status, Volume up ... Include Xear 3D, the virtual 7.1 channel sound simulation software for Windows XP/Vista 8. Driver ... Contents: a. USB 7.1CH Channel Sound Card b. Driver CD USB ...