The first of its kind, this is the iPod speaker that only requires the power of the sun for listening to music outdoors. Your iPod docks into the speaker, drawing power from its rechargeable lithium battery which stores the sun's energy. The device is ideal for poolside gatherings or boating because it resists splashing water from all angles per its IPX-4 waterproof rating. Housed within a rugged, rubberized and aluminum body, its two 5-watt, full-range speakers provide crisp highs, balanced mid-ranges, and resounding, bass-boosted lows. Includes a headphone jack and input line. Works with most iPods, iPhones, and MP3 players. It can also plug into AC. Requires three hours solar charging for one hour of use. Includes remote. 6 3/4" H x 11 3/4" W x 3 1/2" D. (3 3/4 lbs.)