JC 388 Bluetooth Wireless Speaker in black offers clear stereo sound in a compact cylindrical design making it easy to carry anywhere. It features hands free calling, FM radio, Micro SD and USB ports, and a built in side woofer for enhanced audio. With a 3.7V 1200mAh rechargeable battery it provides up to 2 hours of playback and connects via Bluetooth up to 10 meters for convenient wireless listening.