... to use *Exquisite and useful Mini External Power bank for Digital products1.Mini external power bank 2.convenient , easy to use ... external power bank for iphone blackberry mobile phone and other digital productsMini convenient , easy to use , high capacityUse for usb cable ... *55*17mmCompatible Models: iPhone 3G/3GS,4G, Blackberry, Nokia, Motorola, Sony Ericsson, Samsung etc and USB Device