Remote controls are basically electronic devices with assigned functions. These are man-made and man-designed.
Humans have evolved in such a way over the years, that they are now capable of making their most of the requirements being fulfilled by electronic devices. Remote is one such device.
Remote control basically comprises of buttons that have compatibility to control any other device such as: air conditioner, television, radio machines, etc.
The connection is build so strong that they are usable at a long distance radius too.
Moreover, these remotes work on different patterns, some remotes work due to battery (primary batteries),while others work due to cells.
I hope this answer helps!😊