wireless "find me" or "tracking features in them? (that you can turn on or off)

Basically anything that's wifi enabled or plugs into wired networks?

I could see wireless earbuds having a "find me" feature (maybe they already do), TV's, etc.

That "Tile" company I think had a good idea but I think taken further any company that deals with wireless electronics might just put their own tech in the device itself.