Creative Labs USB Sound Blaster MP3+ External Sound Card Sound System High fidelity sound system improves music through Bass Boost and Noise Removal Proprietary Smart Volume Management matches volume across MP3 tracks Make MP3s and personalized audio CDs in one easy step CMSS 3-D delivers virtual surround on stereo speakers and headphones Compatible with Windows 98SE, Me, 2000 SP2, XP, Win 7, Win 8 (Windows 7,8 must download driver from manufacture website)