【EFFORTLESS CLEANING】Equipped with a 40 ml water tank and ultrasonic spray nozzles, this robot delivers consistent moisture for thorough cleaning without manual spraying or risky ladder climbing 【SMART CONTROL】Utilize the remote to instantly select from three automatic navigation paths (Z, N, Z-to-N) ensuring efficient coverage of your entire window surface with minimal effort 【POWERFUL SUCTION】Featuring 2800 PA vacuum strength and a lightweight 80 mm body, this unit securely adheres to glass while moving quickly across mirrors walls and tabletops 【SECURE DESIGN】Advanced vacuum discharge ensures firm adhesion preventing slips even if power fails. Includes a 4 m extension cable and 4 m safety rope for added peace of mind 【VERSATILE USE】Ideal for office buildings high-rise floor-to-ceiling windows and household glass thicker than 1 mm. Suitable for various smooth vertical surfaces requiring regular maintenance