Features: Connection: USB Type A socket, 2 stereo outputs, 2 mono microphone inputs. Includes Xear 3D, virtual 7.1 channel sound simulation software for Windows XP/Vista. Meets Class 1.0 USB audio device specification. There is no need to install the driver in the following operating systems: Windows98 / SE / ME / 2000 / XP / Server 2003 / Vista, Linux / MacOS. USB bus powered, no external power supply needed. USB2.0 pure digital audio output, virtual 7.1 channel processing capability (actual 2.1 channels), the effect is similar to the integrated sound card on the motherboard. Brand new and high quality. Using CM100B sound card chip, it can be used without a driver, or it can be used to obtain stronger functions by installing a driver, with sound effect settings and sound field settings, and good compatibility. Specifications: Material: Aluminum Alloy Size: Approx. 7x2.6x1cm/2.76x1.02x0.39in Color: Black, Gold, Silver Note: No retail package. Please allow 0-1cm error due to manual measurement. Please make sure you don't mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1pc X Sound Card