Xiaomi Redmi 18w Fast Charge Power Bank White 20000mAh

From the Manufacturer

20000mAh Large Capacity
More durable and optimises charging efficiency, offer constant power
Dual USB Input and Output
Two USB ports, which can charge the devices at the same time, the USB-C and Micro USB provide two charging ways, convenient and fast
Up to 18W Power Input
12V / 1.5A, 9V / 2.1A up to 18W power input, deliver fast and efficient charging for each connected device.
High-density Lithium Polymer Batteries
Adopts premium Lithium polymer battery cells. It's compatible with smartphones and tablets as well as a variety of digital cameras and handheld gaming devices.