iConix Power Bank 20000 mAh IC-BP 1513 Compatible for all USB charging devices. Long lifespan of more than 500 times. Self protection for over current, short circuit. Automatically Sleep Without charging to save the power time. LCD Indicator for Power Remaining & Out Put Voltage. Charge your Phone Up to 8 Times. Two USB Ports. Fast Charging For Both Phones the Same Time. Maximum Out Put 2.4 mAh.