Designed for high-altitude cleaning with an adjustable working height from 3.6m to 10.8m, featuring connectable multi-poles for easy installation and disassembly, and a freely rotating brush head to reach every corner for dust and stain removal. Multifunctional water spray brush with an anti-break joint supports various cleaning methods, including spraying with a brush, dusting with a mop, or snow removal with a scraper, enhancing cleaning efficiency effortlessly. Versatile use for cleaning windows at heights, photovoltaic solar panels, shop signs, door headers, billboards, vehicles like cars and trucks, vans, caravans, greenhouses, boats, and decks. Constructed with a telescopic rod made of carbon alloy for high hardness, heat resistance, corrosion resistance, and portability, featuring a non-slip sponge handle for comfort and a long brush head with adjustable angles. Easy water supply system connects to any household water source; simply turn on the tap to quickly clean windows, greenhouses, trucks, and soffits, with the kit ready for immediate use out of the box.