The Whistle Switch Electronic Switch...
A "state of the art" product from the 1970's.
Plug it into any wall outlet then plug the device you want to control
(lamp, radio, TV, etc) into the Whistle Switch and squeeze the ball to
whistle which operated the device to either turn on or off the item you
had plugged into it.
Amazing little gadget from the 70's that everyone wanted to own.
In original box.
Unsure if working due to the ball being hardened and fragile due to age of product.