I have one in my bedroom and I love it. I'm don't know who the genius was that invented it, but it's a great product that's been around for a pretty long time.
Who invented the clapper?
James K. Waller, Jr. Filed the patent for the device that uses sound to activate a something else. Robert E. Clapper, Sr. And Richard J. Pirong then used that to create The Clapper.
