18 V lithium-ion battery (not included). Removes dirt without power and water connection. Flexible use for cleaning, foaming, or watering plants. Can be used with any water source such as a water bucket, lake, rain barrel, tap, or bottle. Features an ECO function for longer working time. Includes a 5-in-1 water nozzle for flexible use. The battery-powered high-pressure cleaner can be used for cleaning and foaming as well as for watering plants. It can be used in conjunction with any water source, such as a rain barrel or pond, or connected to the domestic water supply via a tap.