The Soulra Solar Powered iPod Speaker provides exceptional iPod ® audio and is powered solely by the sun. This speaker is the perfect picnic or poolside companion. * This full-range 8-watt RMS speaker draws power from a built-in solar panel * Dock delivers up to 5 hours of continuous iPod playback per charge * Rugged, water-resistant exterior guards against splashes and spills * Bass boost provides stronger low-end performance when desired * Includes rechargeable lithium-ion battery and remote control