1. power banks 2. size:104*66*13.6MM 3. 2200mAh 4. ... led display the capacity 5. USB and Mini usb ports power banks for phone, camera, mp3, mp4, for ipad, for iphone ... port and USB port with led display to show the power comsumption Nice design, so that you can used portable battery seperately ... charge you mobile phone, camera , PDA , camera etc . very useful . power banks