... The unique features of this external battery pack: 1.Can charge for all 5 voltage digital products like mobile phones, MP3,.MP4 ... nana,iPod Classic,iPod Touch,Apple iPhone/iPhone 3G/3GsBlackberryDigital Camera,MP3/MP4 player,PDA,GPS,Bluetooth headset,Gaming player( ... 4. Practical to charge three more times for the mobile phone, as the huge battery content reaches 4000mAh5. Advanced circus controlling ...