It is used for cleaning vehicles, outdoor areas, and other surfaces by spraying a high-pressure water jet.
The model shown is likely the Yamasu YMS-RX3000CA.
It features a black handle and a red body with the brand name printed on the side.
The machine has a water outlet on the side and is powered by electricity.
Some models may include features like an adjustable spray nozzle and a dual water intake method.
It can be used for various cleaning tasks, including watering plants.