In the original Star Wars, there is a scene where Luke comes into the room where he was cleaning the droids and they aren’t there. He pulls out a cylinderical object, presses a button, and C3PO jumps up from hiding.
Does anyone know what that prop is called?
Droid caller, droid finder, droid remote?
I believe Han Solo had one on his tool belt as well.
Google searches keep turning up “how to locate your android phone”.