1.rechargeable backup battery charger for psp,mp3,mp4,phones 2.charger for phones,pda,mp3,mp4,game 3.li polymer battery Its capacity reach ... usb output and have double function of charger and backup battery.You can charge your device such as mobile phone,game ... to door service.Different way to ship like EMS, DHL,UPS, TNT, Fedex.About PaymentFlexible payment term, like Bank Transfer, PAPAY ...