... , low distortion-rate and clear sound. Overall, the USB laptop speakers provide great stereo sound, look great (with the elegant ... with clear bass resonanceNo batteries or power supply requiredMini USB Laptop speakers providing high efficiency, low distortion-rate and clear ... :2.0, Type: Wired, USB 5-6V Power supplySuitable for Laptop, PC, MP4, MP3, PDA, Home Theater, subwoofer speaker ,Portable ...