Convert any PCI COM 10 or Elite Intercom to Iridium PTT. Our exclusive Dual Radio switch box allows you to listen to two radio inputs and select which radio is currently transmitting. Designed with dual microphone gain adjustments to balance audio output of a range of radios and satellite dispatch radios. - Optimized for the new Iridium PTT *Contact us if you have the older PCI Com 6 system as extra parts are needed.