Rugged industrial design protects your MP3 player or smartphone from the elements when you are outdoors. Take it to the beach, hiking and backpacking, or on your camping or boating trip. The Eco Extreme has been IPX7 approved (International Waterproof Standard) when the unit is properly closed and sealed, keeping all your valuables are safe against rain, snow, water, dust or sand. It even floats! Feel the power of its built-in 3" full-range waterproof speaker so you can enjoy your music wherever you go. There's even extra storage room for keys and credit cards. Enjoy up to 30 hours of battery life at average volume levels. It's powered by 3x AA batteries (not included).