this product is a multi-function solar emergency charger.build in 1350mah high capacity rechar geable polymer battery.you can charge your mobile phone,digital camera,pda,mp3,mp4 whenever and wherever.style design and convenient to take it with you product characteristic: 1.high solar energy convert efficiency: over than 15% 2.solar energy board: 5.5v/80ma 3.high capacity build in battery: 1350mah 4.output voltage: 5.5v 5.output current: 800ma 6.charging time: about 60 minutes(the time is a little different for different mobile phone) 7.to charge the build in battery in the charger using solar energy: 10-15hours 8.to charge the build in battery in the charger using computer or ac adapter£º5hours fits for: mobile phone digital camera pda mp3 mp4(the battery capacity under 1200mah