LED indicators: Microphone-mute status, activity
USB2.0 full speed specification (12 Mbps)
Hidden USB Class Specification 1.1
USB 1.0 Audio Device Class Specification. USB bus powered, no external power required.
The External USB 7.1 Audio 2.0 Channel Sound Card Adapter. It can work with desktop or laptop. And with Xear 3D Sound Simulation software, it expands stereo speaker or earphone to 7.1 channel environment, which gives 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
Key functions: Microphone-mute, Speaker-mute, Volume-up and Volume-down.