Four electrical device can be remotely operated by this system. A transmitter with encoder circuit will transmit the IR frequency 38kHz and a matching receiver will receive the signal to switch the relays to control devices. This is a complete, assembled working project / model (duly tested) at our work shop. This is a handmade project on a general purpose PCB and uses Electronics / Electrical components as per requirement of a particular model. A rough report & study material related to project will be mailed to student on request.