How do remote controls use electromagnets?

Remote controls primarily use infrared (IR) signals to communicate with devices, which do not directly involve electromagnets. However, inside the remote, components like the circuit board and the buttons may use small electromagnets in specific applications, such as in vibrating alerts. The IR LED emits light signals, which are received by sensors in the device, translating the commands into actions. Overall, while electromagnets are not central to the remote control's primary function, they can be used in peripheral features.