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This Robot Vacuum Cleaner really sucks, in the best way possible, it helps me a lot because I sit in a Wheelchair, so cleaning the Windows is always a problem.
Setup and device operation is done quickly and easy._1. Fill the provided bottles with clean water (I use destilled water, thus the nozzle wont get blocked) and fill the two water tanks inside the robot._2. Spray some water on the cleaning cloth. Insert the power supply, Hold device to the window, push start button once the device is telling you to._3. Of course you should attach the safety rope before operation the device ( I just put the rope through the window and close it, so the rope is fixed by the window frxame.__Here is a video of operation: https://drive.google.com/file/d/1ZjjBE8zmshOJc3lsHOCRoMaxGFJozynv/view?usp=sharing__The robot clearly leaves visible tracks on the window, I may need to figure out how to void that. _To get an acceptable cleaning result, it was necessary to let the robot start cleaning from different corners each time, thus it made 3 runs on one window...