Wirelessly stream audio from a Bluetooth enabled device. Passive subwoofer provides powerful bass for enhanced sound. Features 360-degree color changing light with 11 modes. Waterproof design floats in water with jack cover closed. Connect a 2nd speaker for immersive stereo sound (NOT included). LED indicators display battery level and pairing status. Voice prompt notifications for battery and pairing. Volume on speaker and phone automatically sync. Up to 30 hours of wireless playback on a single charge. Includes USB charging cable.