Its Power bank module, connect 18650 lithium ion battery to this and charge your Mobile Phone.
It has 3 USB port, High Speed Charging. Led Emergency light also Include. 4 Led indication inbuilt to shows charge of battery. Colour may vary accoridng to stock.
High Speed 3 USB port power bank circuit for moniles. 4 led indication system 25% battery charge each. Led Emergency light inbuilt. 
Input Voltage: 3. 7V~5. 5V
Charging Current: 2A(max), Output Current: 2A(max)
Output voltage: 5V, BAT Discharging Stop Voltage: 2. 9V
Discharging Efficiency: 85%(input 3. 7V output 5V/1A)
 
Package Include-
1 X Charging Module