Features- USB 2.0/1.1/1.0 compliant- Auto driver installation, Plug & Play USB device- Drive two channels speakers directly- Support 3D positional sound and virtual 5.1 channel soundtrack- Digital class B power amplifier inside- LED status indicator- Works with Windows® 7 / Vista / Xp / 2000 / Me / 98SE- Size: 51.5 x 23.0 x 12.6 mm- Weight: 8 g- 3.5 mm connection- Surround System: Surround 5.1- Connection: USB2.0- Gameport: No- Full Duplex: Yes