【High Sound Quality】USB Computer Speakers featured in two full-range speakers and a passive sub woofer, offers clear sound with deep bass Helps immerse yourself in the mind-blowing stereo sound while enjoying music, movies, and computer games! 【Plug and Play】Just plug into an available USB port and enjoy the rich stereo sound. Tips:USB computer speaker does not have a volume knob and only controlled by your computer settings. 【Space-saving Design】Mini size(7.2*1.6*2.0 inch), in space-saving size are designed and engineered to fill your office , study space or any nook at home with music, movies, games, audio book or online lectures at ease.