Comment by michael1999

My need was finding my black wallet in the house when I forget where I put it. My wife has been very happy that she no longer has to field "Hey sweetie, have you seen my wallet?". I walk around asking it to sing to me, and I find it without bother.

As for theft - you might be overthinking it. It's a black piece of plastic that could easily be a door key. Gutter thieves will rifle the wallet and pull out cash, and credit cards, and drop the rest in the trash anyway. Any regular thief knows they don't want to be caught holding someone else's id.