This rugged 20,000 mAh power bank has two USB ports to connect devices such as smartphones and other devices that charge via USB. It has 5 blue lights to indicate the percentages of the battery and a flashlight to use when it gets dark. 

Features:

Fast charging ,high quality and high capacity cell ,safety and durable

Multiple charging

Safe and certified battery

Standard USB output ,micro USB input

With micro USB cable

Over-heating protection

Short circuit protection

Over-charging  protection

Specification:

Capacity: 20000mAh

Input: DC  5V/2A

Output: USB 1: 1.5V/2.1A USB 2: 5V/1A