Did a piece come off my rb vacuum?

Attached is a picture of an object that I found underneath a piece of furniture this morning - right after a vacuum and mop sequence occurred. Did something come off my vacuum? I see a place underneath the vacuum were this object could “fit”., but not sure how I would ‘reinstall’ it. Can someone please advise me on if this object came off my vacuum. Thanks!

Not from your vacuum.  It's a piece from a old vintage phone. Do you have that ?