IPX67 waterproof/everything proof</br>The built-in rechargeable Li-ion battery works up to 10 hours at 50% volume with one charge</br>Works with Bluetooth compatible devices or through a 3.5mm Aux jack (included)</br></br>Product Description</br></br>MINI LIFEJACKET ALTEC LANSING??rugged bluetooh speaker Waterproof/shockproof/everything proof.Water submersible and sand??snow??and shock proof. IP67 certified.</br><br/>http://www.amazon.com/gp/product/B012YA1IA4