Here is the rare and very first wireless remote control in television history circa early 1950’s. This “flashlight” worked by remotely activating a sensor on the television to either change the channel or change the volume. This ad helps to explain its function:
This example is all original and has survived in excellent working condition. The light bulb works when a single “C” sized battery is inserted. The plastic housing is nice, and the lettering is sharp. The lens is nice and the metal around the lens is dent free. A nice and very collectable example. Your Zenith remote collection will never be complete without owning a Flash-Matic.
For more information about this revolutionary product innovation and to learn about its inventor, read this article: The Father Of The Couch Potato, Inventor Of Wireless Remote Dies At Age 96 : The Two-Way : NPR