Cranes can be controlled by a wireless radio remote device known as a radio remote control....
While using the radio remote control the transmitter device generates artificial waves to control the heavy machines....
The overhead cranes or electronic machines can be controlled and manipulated through the artificially generated waves....
Wireless radio remotes are those devices that control electronic devices or heavy equipment machines such as cranes....
The artificial radio wave is generated to control the machine such as crane is called radio remote control....
The radio remote control is electronic equipment that works wirelessly to manage and control the EOT crane....