Compliant with USB 2.0 full-speed (12Mbps) specification Compliant with USB Audio Device Class Specification 1.0 Compliant with USB HID Class Specification 1.1 USB bus-powered mode, no external power needed Connectors: USB Type-A, Stereo output jack, Mono microphone-input jack Functional keys: Microphone-Mute, Speaker-Mute, Volume-Up, Volume-Down LED indicators: Microphone-Mute Status, Activity Include Xear 3D, the 7.1 channel sound simulation software for Windows XP/Vista Driverless. No driver needed for Windows 98SE/ME/2000/XP/Server 2003/Vista, Linux, MacOS
Behaves as it should. Using it with a Mac no problems...except surround features do not work with Mac....it outputs in stereo but no worries my surround amp does the rest.! Good product.Great price. Free delivery. No brainer.