... 5000mAh portable battery charger for iPhone 4 4S,iPod,PSP,GPS,MP4...Number:MA8323Main functionAdvanced aluminum materials,feel comfortable, ... microcomputer intelligent power monitoring and displaySpeed shuttle,a key enabling all operationsAuto-sleep,non-working state automatically sleep,to prevent ... USB charging,such as mobile phone,iPhone 4G 4S,PSP,IPOD,MP3,MP4,GPS,Bluetooth,digital cameras and so ...