Usb 2.0 to 3D 7.1 audio sound card

This is a usb 2.0 external 7.1-Channel audio sound card adapter and works with desktop or laptop this sound card extends your stereo speaker or earphone 7.1 channel environment giving you a higher quality sound enjoyment. Features led indicators microphone-mute status activity usb 2.0 full-speed 12Mbps usb hid class 1.1 usb audio device class 1.0 usb bus-powered no external power required. Connectors usb type a stereo output jack mono microphone input jack functions keys microphone-mute speaker-mute volume-up and volume-down plug and play no drivers for windows 7 / 2000 / xp / server 2003 / vista linux mac os compact portable convenient carry. Package content 1 x usb 2.0 3D virtual 7.1 channel audio sound card adapter no cd driver approx 57mm x 25mm x 12mm weight approx 14g model MD01217 electronics photography.