Intercom systems featuring full digital circuitry, backlit and heavy duty touch pad controls, split or mono audio versions and simultaneous radio transmission capabilities, composed of primary control units, remote head stations, fixed push-to-talk stations, intercom only stations, standard length and pre-terminated plug and play cabling, headset extension jacks, and footswitches for hands-free radio transmission, and communication headsets for use with communication radios, intercom systems,...