Here is another robot that can clean your windows for you. The Winbot 950 is a window cleaning robot suitable for different types of class. You will just have to spray the cleaning solution onto the sponge, put the robot on your window, and start. Operating at 62dB, the robot doesn’t make a lot of noise and cleans hard to reach areas efficiently.
The Winbot 950 cleans windows with or without frames. Its integrated backup power lets it stay on the window for at least 15 minutes after a power cut.