OX Power fast charging high capacity power bank is a compact and portable way to supply quick charge to USB-chargeable devices. Anything from digital cameras and headsets to smartphones and tablets can be recharged whenever and wherever, it has USB cables attached to the body, it is easy to operate, just connect the USB Cord to your phone from the power bank your phone or any device you want to charge start charging immediately, the power bank has the capacity of changing three devices spontaneously. It is very effective.