(2 Pack) 7.1 Channel USB External Sound Card Audio Adapter With Mic - Plug and Play Compatibility - Supports Virtual 3D Sound - Turn your Front USB Port of Desktop into Audio Input and Mic Plug the Sound Adapter into your USB port, and then plug your headphones into the Adapter. 7.1 Channel sound without the investment in a whole set of speakers! Tired of trying to stretch your cables around the back of your computer? Plug this Adapter into a USB port on the front, and use the headphone jack (for output) or the microphone jack (for input) The USB Virtual 7.1 Channel Sound Adapter is a highly flexible audio interface which can be used either with desktop or notebook systems. Comes bundled with Xear 3D Sound simulation software, and turns your stereo speaker or earphones into a 7.1 channel environment! USB2.0 ,Full-Speed (12Mbps) Specification USB HID Class Specification 1.1 USB Audio Device Class Specification 1.0. Please note: This does not support Mac OS.