Stereo and Noiseless:This desktop speaker uses upgraded 20W technology and adds 2 bass diaphragms to fill the strong sound of super bass. By using anti-magnetic technology and suppressing static and other noise, our USB speakers provide you with enjoyable stereo experience when you enjoying indoor movies, videos, music and games. Ultra-long Life Battery:Included 2000mah Rechargeable Battery,it's portable for you take it to any place.Or you can play it with the power plugged in, and it charges off of a MicroUSB Port. It supports Bluetooth Version JL5.0. Unique Simply Design:Unique one button design make you easily in control,just rotate it. Thin and Portable:Slim design works well with your computer or TV while letting users play What they want without sacrificing valuable desk space