Powered by a two-watt motor, and like a terrible scarecrow, this machine was invented in Japan in 1963.
Called the Cat-Mew, it was designed to scare little rodents away from your premises, by letting out a meow ten times a minute. If you were in a home that didn’t allow pets, then it would seem like the perfect solution without laying down poison. If it even worked. Which it probably didn’t. Hence why it’s not around today.