Push to Talk Button - No Coil

3.5 mm PTT (Push To Talk) used to activate the radio for car to car communications.  If you would like to have multiple PTT’s for the COM you can simply buy a 3.5 mm 3 pole splitter (see up to 2 PTT splitters here) (3 to 4 PTT splitters here) and plug another PTT into the splitter end.