Lithium polymer battery 12000mAh/3.7V Solar panel:16V/160mA Two USB outputs ... with a hook hanged on the backpack . 1) Lithium polymer battery 12000mAh/3.7V2) Shell: ABS+PC material3) Solar panel:16V ... ) Variety using: mobile phone,digitalcamera ,ipod, iphone,psp,MP3,MP4,Laptop etc.7) Certification:CE,RoHSBecause there are three Solar panel ...