Go Green with the Sunpak SC-2800 Dual Panel 2800mAh Solar Charger by harnessing the power of the sun for all your USB devices; cell phone, iPod, PDA, GPS, MP3 Players and games. The SC-2800 Dual Panel Solar Charger can charge all your USB devices over and over using sunlight or USB power source. Its small size and shape makes it great for traveling, camping and on the go. Never be without USB power again. It has power to spare with a 2800mAh lithium-ion battery.