This product is a multi function solar emergency charger. Build in 900-1100mah high capacity rechargeable 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. 1) Meet an emergency 2) Convenience 3) High efficiency 4) Environment protect, Save resource 5) Modem and portable 6) Safe use Specifications: 1)High solar energy convert efficiency: over than 15% 2)Solar energy board: 5.5V(60MA-80MA) 3)High capacity build in polymer battery: 1350mah 4)Output voltage: 5.5V 5)Output current: 100-500MA 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: 10-15 hours 8)To charge the build in battery in the charger using computer or AC adapter: about 5 hours. 9)Fits for : Mobile Phone, Digital camera, PDA, MP3, MP4(The battery capacity under 1200mah)