Remote control
From the Simple English Wikipedia, the free encyclopedia that anyone can change
A remote control is a device used to issue commands ( controlling it) from a distance to televisions, DVD players and so on. A remote controller does not have a wire and can be held in the hand. It has buttons for volume, changing television channels and more.
Infrared or radio signals are used to communicate with the devices. A remote control works on batteries, mostly AAA or AA size.