Excellent cleaning effectThe window cleaning robot with a square shape was developed to clean every corner of the glass surface and to effectively overcome the challenge of cleaning hard-to-reach areas. It offers three automatic cleaning paths to choose from, or you have the option of controlling it manually. Dual Water Spray Water spray nozzles are equipped on two sides of the robot. The water spray nozzle on the directional side will spray water, making it more effective when cleaning. The water spray function can be controlled either automatically or manually. Multiple Safety Protections: The robot normally works at a voltage of 24V. When there is a power outage, the robot will issue a voice alert and its shutdown protection will prevent it from falling immediately. It is recommended that you always use the safety rope when operating the robot. Scope of application: This window cleaning robot is compatible with all types of glass, windows, tiles, glass floors and hard-to-reach places such as interior or exterior windows of high-rise buildings. Service: The window cleaning robot, remote control, 4 cleaning cloths, charging plug, power adapter, 100ml spray bottle, instructions and measuring cup are included in the scope of delivery. For further assistance, please contact our customer service.