Net Weight: 14g.

Size: 57 x 25 x 12mm.
Weight: 14g.
LED indicators: Microphone-Mute Status, Activity.
USB2.0 Full-Speed ( 12Mbps ) Specification.
USB HID Class Specification 1.1.
USB Audio Device Class Specification 1.0. USB bus-powered, no external power required.
This is 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 software, it extends your stereo speaker or earphone to 7.1 channel environment, giving you high quality sound enjoyment.
Connectors: USB Type A, Stereo output jack, mono microphone input jack.
Xear 3D virtual 7.1 channel sound simulation software for Windows XP / Vista is included.
Functions keys: Microphone-Mute, Speaker-Mute, Volume-Up and Volume-Down.
Plug and Play. No drivers required for Windows 2000 / XP / Server 2003 / Vista, Linux, Mac OS.
Compact, portable, convenient to carry.
If you need Cheaper USB sound card, please visit my store and find product which Chipset is 6911.