The Clapper

The Clapper is a gadget that uses a sound activated switch sensitive to clapping, to turn off and on any two appliances that are plugged into it depending on the number of times you clap. However, they tend to be activated by just about any sound. The Clapper works with any American standard electrical outlet.

The Clapper was invented by Joseph Enterprises, Inc. who also invented the Chia Pet.

Quote

"Clap on (clap clap) Clap off (clap clap) Clap on, Clap off The Clapper"