dbojan (Bosnia and Herzegowina)
Frequency-based search in home
This is yet another search solution for things you may lose within you own four walls - but with a new twist.

Remember those key pendandts that made sound when you whistle? Something like that for finding small objects like phone or remotes. There would be one base unit (appliance). You could change frequency on it (135, 136,137 ...) with simple + - buttons. When click on send it would transmit that frequency in small area. Enough for house or flat.

Each small object would come with receiver set to certain frequency. Remote will respond with some sound when it hears frequency 135. DVD remote to 136. Phone (handset) would respond to 138.

Receivers could be on stickers. You would get package of 10 when you buy base unit. You could glue it to small objects.

Reward: New remote for VHS.

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