If you want to take your music with you wherever you go, then Grace Digital's Eco Extreme Gear line of products is the choice for you. Strap in your iPhone, Android, Samsung Galaxy 2S/3S, any MP3 player or smartphone behind the 100% waterproof clear shell and turn up the volume. The ECOTERRA houses and protects any cell phone or MP3 player from the extremes of water, dirt, snow, and shock. The ECOTERRA Boom Box is a floating IPX7 waterproof iPhone/MP3 player case which is fully submersible in water. The ECOTERRA is built with two large waterproof stereo speakers, and powered by 4 C-cell batteries or the included AC power adapter. The two full-range 3" forward firing speakers provide a crisp, clean sound and can be played in virtually any position (open, closed, upright, onside, or upside down). The internal waterproof storage compartment has dimensions of 4-3/8" by 5-5/8" and holds and protects your keys, MP3 player, credit cards, driver's license and cash, keeping them safe from sand, sun and the water. The heavy duty industrial design includes a platform to vertically stand your case while open or closed. The ECOTERRA also has a uniquely designed exterior pressure release valve that ensures your case is closed air tight and is easily opened at low and high altitudes. When thrown into the water, the ECOTERRA case will always rotate position to float with the speakers pointed up so you can always enjoy your tunes.