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 ... .We accept bigh order or small order.About PriceGood quality with competitive price, the more order you place, the lower price ... product have passed strick test and have one year warrant rechargeable backup battery charger for psp,mp3,mp4,phones