Power Bank | 10000 Mah | 2-usb-a Outputs 2.1a | Micro Usb Input | Black, Nedis

Use this portable power bank at home, in the office or when you are travelling to charge two devices simultaneously.
The handy LCD display reveals exactly how much power it has left so you know when you may need to plug it in. There’s enough power within to charge a smartphone up to four times and a tablet up to one and a half times.
The power bank offers protection against overcharging, short circuiting and overheating.

Datasheet