Attributes . IP67 Waterproof, shock resistant, sand proof. It even floats!. 30 cubic inches of waterproof dry storage for phone, key fob, and credit cards. Big sound & long playtime packed into a slim, rugged, and portable package. Integrated music controls: Volume, play/pause, FWD, and back buttons. Built in microphone: provides speakerphone function, Siri / Ok Google integration. Integrated rechargeable lithium battery . Values