Remote controlled operation provides precise, hands cleaning with selectable sequences: auto up then down, auto left then down, and auto right then down for versatile use. Two 30 ml water tanks supply ample water for extended cleaning sessions, helping cover larger areas without frequent refills. Automatic doubleway water spray nozzle eliminates manual spraying, enabling efficient cleaning without extra effort. Suction power of 5600 Pa, combined with automatic or manual water spraying modes, supports safe, effective window cleaning and reduces the need for risky altitude work. Use scenarios: Cleaning tall residential windows on multistory homes or apartments where ladders are impractical or unsafe. Maintaining glass doors and partitions in office spaces, providing consistent results with less manual effort. Cleaning skylights or large, hardtoreach panes that are difficult to reach from the ground.