JAM Xterior Plus Rugged Wireless Bluetooth Speaker, Floats on Water,  Dust Proof, Drop Proof, Waterproof, IP67 Rating, Integrated Screw Mount for Bike, HXP570 Bluetooth: connect wirelessly with any Bluetooth device in a 30-foot range Rechargeable: provides up to 8 hours of play time on a single charge Totally rugged: dust proof, waterproof, and drop proof (IP67 rating) Integrated screw mount: mount it on a bike for a rocking' ride Floats in water: seriously, it Floats in water while playing music