Switches are essential elements present in almost every electronic device as they open or close the circuitry. With frequent use, these units are susceptible to damage and need replacement. The plunger switch is perfect when you need to replace an old or damaged switch of TTU series of talk thru devices from Norcon.Other featuresThe switch provides for the stability of the circuit with a positive temperature coefficient.Keep your TTU device functional with a smooth ON/OFF operation of this switch.The product is constructed using quality materials for long-term reliable use.