a small version of a lawn mowing robot that can be placed on the back of a person to autonomously cut off any back hair.

![enter image description here](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Husqvarna_Automower_308_with_track_marks_in_lawn.jpg/800px-Husqvarna_Automower_308_with_track_marks_in_lawn.jpg)