POOLEE Bentley 20000mah Fast Charging Power Bank

The item shown is a Poolee Bentley 20000mAh power bank. It is a portable device used to charge electronic devices like smartphones. Here's some information about it: 
It has a 20000mAh capacity.
It features dual USB output for charging two devices simultaneously.
It has both Micro-USB and Type-C input ports.
An analogue display indicates the remaining battery.
It includes a built-in flashlight.
It is compatible with most mobile devices.
It offers multi-protection features.
It comes with a 1-year warranty.