1) 2200mah power bank 2) For mobile phone ,digital products 3)Portable&light weigh 76g 4).External power bank 5 ... ,MP3/MP4,PSP,GPS and all with DC 5V input digital products Colors options:BLACK,BLUE,RED AND SILVER Capacity: 2200mAh Input ... ,MP3/MP4,PSP,GPS and all with DC 5V input digital products.Very easy and convenient to carry.it's the BEST ... MP3/MP4,PSP,GPS and all with DC 5V input digital products