Wirelessly stream audio from a Bluetooth enabled device. Features 360-degree color changing light with 5 modes. Light modes - slow fade fast change color pulse to music preset pulsing. Waterproof design floats in water with jack cover closed. LED indicators display battery level and pairing status. Voice prompt notifications for battery and pairing. Volume on speaker and phone automatically sync. Up to 20 hours of wireless playback on a single charge. Dimensions: 2.88"L x 2.88"W x 3.7"H. Includes USB charging cable.