Why is it on your desk, when was it last used, no, of course you cannot remember.
It was a phase thing, you enjoyed it for a while, it surprised you, it delighted you, it freed up your creativity.
Now go and open the box.
A FULLY DESIGNED PACKAGE,
THOUGHTFULLY EXPLORED
It is an electronic pencil, designed to work with an iPad; I find that the battery can be charged by a USB connection which obviously shows that I did not use it very often.
Probably it was when I bought my iPad mini several years ago. I do remember a video.