Battery capacity: 20000mAh/3.7V 74Wh rated capacity: 12000mAh input: IP (presumably Apple): 5V 2A, 9V 2A max. Micro: 5V 2A, 9V 2A max. Type-C: 5V/3A, 5.5V/3A (SCP), 9V/2A max. Output: USB1 and USB2: 4.5V 5A, 5V 4.5A, 5V 3A, 9V 2A, 12V 1.5A max. Type-C: 5V 3A, 9V 2A, 12V 1.5A max. USB1 + USB2: 5V 3A max. USB1 + Type-C: 5V 3A max. USB2 + Type-C: 5V 3A max. Type-C + USB1 + USB2 total output power: 5V 3A max. Interface: USB, Type-C. Remember, you can buy master copies of this under any name for half the price, but they do not charge mobile phones properly, so buy wisely.