The Havit HV-SK486 USB 2.0 Speaker has a distinctive circular shape that literally fits in the palm of your hand. You can surround yourself with perfectly balanced music and get amazingly rich sound from these speakers. The HV-SK486 speaker accepts audio input from a variety of audio devices, such as mobile phones, laptops, and MP3 players, and can also be connected to a DC power adapter. With a USB power input cable, these speakers can be powered by a laptop.