... 17mmCompatibility:Port 1: Cell phone,iPhone,MP3/4,iPod,PSP,all digital devices charged via USB portPort 2: iPad1,iPad2 Or ... temperature, and short circuit protectionMulti function:external power bank for Iphone, Ipod, Mobile phones, PDA, MP3, Camera and other ... Iphone, Ipod, Mobile phones, PDA, MP3, Camera and other digital products. 2, Small, convenient, easy to use, high capacity.3, Use USB cable ...