Cables Kart 7.1 Channel USB External Sound Card Audio Adapter with Mic Colour: Black >Description: The USB virtual 7. 1 channel sound adapter is a highlyflexible audio interface which can be used either with desktop or notebook systems. >Features: >The USB 2. 0 virtual 7. 1 channel sound adapter can work with desktop or laptop. This highly flexible audio interface extends your stereo speaker or earphone to projected 7. 1 channel environment. Compliant with USB 2. 0 specification. USB plug and play compatible. Portable, compact and durable. >Specifications: >Bundled with xear 3D sound simulation software, it turns your stereo speaker or earphones into 7. 1 channel environment. No drivers required, just plug and play for instant audio playback, also compatible with all major operation systems.