Special high out battery that allows for fast charging. Please use the Mophie Original cable to charge this device. Otherwise it will not charge up.;Capable of switching between 500mAh, 1A, and 2.1A charge;Ability to charge virtually any USB device in the world.;Charges Apple, Android, Blackberry and other devices;Sleek, Red soft-touch finish with stainless steel outer band. We would suggest to fully charge the mophie device fully before charging any other device into the mophie