I'll bet that there's GPS-less lingerie that costs around the same price. That said, if you really want to geek it up, you have to go with an old school geek reference, like, the beeping locator from Aliens.

Boop.............boop...........boop..boop (ok getting hornier now!) boop.boop.boop.boop (oooooh mama) boopboopboopboopboopbopbopbopb...