Specifications: 1) 0.7W multi-crystalline silicon solar panel 2) Battery: Built-in 2,000mAh Lithium battery 3) Rated output: 5.5V, 0.5-1A 4) Takes 8-10 hours to fully charge the Lithium battery by sun 5) With batteries in full, the device charges an average mobile phone within 2 hours 6) Can charge 2 mobile phones fully once the Lithium battery is fully charged 7) Fully charged by computer or AC need 5 hours. Features: 1) Novel design for running over 90% of small digital electronic products in the market 2) Elegant and extremely portable 3) High capacity internal battery stores energy for up to one year. Accessories: 1) Instruction manual 1PC 2) 6 cell phone adapter plugs included