Specifications:

1.Capacity: 20800mAh
2.Input：5V DC 1A/2A
3.Output: 5V DC 1A/2A
4.Case Material: plastic 
5.Color: Black, White, Green, Blue, Pink
6.Weiget: about 445.2g
7.Dimension: 170*82.1*23(mm)
8.Charge Tip: Micro USB
9.Discharge Tip: Dual USB

Function introduction:

1.Button: Click the button and start working. It will work immediatly when connected with digital device. 
2.Indicator: LCD indicate the capacity; LCD will turn off automatically if the item don't work in 20 seconds. 
3.With 2PCS LED flashlight, dublue click the button the flashlight on(off).
4.Protection: Over charge, over discharge, over voltage, short circuit protection.