If you enjoy your music wherever you go, then Grace Digital" s ECOXGEAR line of products is the choice for you. Looking for a waterproof case to keep your Smartphone or MP3 player 100% safe from all of the elements and still want to enjoy your music, then the EcoXpro is the solution you are looking for. Insert your iPhone android, Blackberry, any MP3 player, or even the largest of Smartphone"s and turn up the volume. The EcoXpro is IPX7 waterproof tested and approved. What does that mean? It means the EcoXpro is not just water resistant but 100% waterproof! So don" t worry if it gets knocked in the pool, falls off the boat, drops into the river, lake or ocean - your device is 100% safe from the harshest of elements. It even floats! Uniquely designed air pressure release valve ensures your case is closed water tight yet easily opened at low and high altitudes. Even the universal external headset jack is waterproof. The Internal waterproof cavity houses your music player/Smartphone as well as extras such as cash, credit cards, or extra car key. Play the EcoXpro for up to 30 hours on 3AA batteries (not included). ECOXGEAR - No Worries, Just Play.