This is a Waterproof, Shockproof, Dustproof Rated IP66 for 100% protection against Water and Dust. Rubberized rugged exterior for ultimate impact resistance. Advanced Bluetooth 4.0 Technology- Ultra-optimized version of Bluetooth that consumes less energy and delivers crystal clear sound. Jaw-dropping Sound Quality and Volume - Equipped with a passive subwoofer and two 40 mm drivers, itll deliver the rich bass and sound quality that you crave. Lithium ion rechargeable battery Enjoy up to 8 hours of uninterrupted playtime with a single charge. Doubles as a Shower Speaker- listen to your favorite tunes while showering and still be able to control all the functions without having to step out of the shower.