Take your music anywhere with the ECOXGEAR ECOExtreme waterproof that case works with every MP3 player and cell phone including the iPhone, iPod Touch, Motorola Droid, and Blackberry. Built with a rugged, rubberized protective body, this is a great choice for anyone on the go who wants to take their music with them. This waterproof case features a built-in speaker, 3" full-range forward firing speaker, universal 1/8" headset jack, and convenient detachable carabineer clip allows easy transportation while leaving your hands-free. The ECOExtreme boasts up to 30 hours of battery life (at average volume levels)and is uniquely designed with a exterior pressure release valve that ensures your case is watertight. A spacious internal storage compartment can hold your keys, MP3 Player, credit cards, and more, its industrial design includes a platform to vertically stand your case while open or closed. This case has an exclusive high-impact, shock-resistant design made to withstand drops, falls, and spills. Requires 3 AA batteries (batteries not included).