Relay demonstrations refer to live or recorded demonstrations in which a system, device, or technology is presented by showing its operational capabilities. These demonstrations often involve showcasing how certain components interact, how control signals are transmitted, and how outputs are generated in response to inputs. The focus of a relay demonstration is to offer a clear, visual explanation of how a system functions in real-world conditions. The term "relay" is most often associated with relay switches—electrical devices that control circuits by opening and closing contacts in response to a signal.