The metal is like uh in a remote controller you have a chip integrated circuit which is like a brain of the remote controller. It takes the power from a battery say a battery it it can be a elec an electric supply like you have to uh like uh switch connec connect connect your remote controller to uh power supply from the you know electricity or something like that. It should be a battery because uh uh remote controller should be like you you you should take it t to wherever you want and then um uh th
Mm-hmm.
this integrated circuitry takes energy from the power source and whatever like if you press a button it's like a input for the remote controller and it takes the input and it it transforms into a infro infrared bits and it sends it into the device , like a T_V_ or a air conditioner , something like that so. Uh a remote controller is specifically designed to a single device. If you want to design it for multiple devices then you should make all the devices compatible with the frequency like uh th the remote controller it sends some bits some uh waves like with a particular frequency the device should know what the frequency is. It should re re recognise the uh waves which are coming from the remote controller and it should take the action like if you press a button channel or something like that then uh the remote uh remote controller will send a send a se  send a signal ,
Signal.