... MP3,MP4,PSP,NLSL,IPOD,cellphone,digital camera Feature solar battery charger:1. The product is aluminum alloy, noble and elegant2. ... AC adapter to the built-in battery charging time: 5 hours10. Automatic light-sensitive, add battery power11. Output voltage adjustable 4 ... file output: 3.7v 4.2v 5.5v 9.0v; solar battery charger