DEMU Window Cleaner Automatic Window Cleaning Robot Remote Glass Cleaner Tool for Framed & Frameless Window

When I was shopping for it I saw only two reviews and they both looked like they were written by the manufacturer, but there was nothing better anyway so I decided to try it. The instructions, being written in China, have much to be desired. However, after I figured out how it should actually work I found out that it works really well. I was actually surprised. I was also concerned about it falling, especially when washing the external side of the window. I was relieved to see that I did not have a single issue. The only time I've seen it fall off/detach is on frameless glass that was narrow, not allowing the robot to turn easily due to small width of the glass.

This robot is the equivalent to a vacuum cleaner. The fact that it does not contain a reservoir for liquid, means that it can only remove dust.

It's not perfect but works well, i think the padding should be larger for better cleaning on the windows angles. I use windex on the padding and my windows are nice and clean

Works like a charm. Just put it on the glass and leave. My glasses are spotless in no time.