Premium intercom system with weatherproof enclosures and gasketed lids for headset jacks. Accommodates up to three radios, ten firefighters and fourteen positions, including six intercom positions. Plug and play components and the fewest components of any leading system make the system 922E easy to install, saving time and money. Allows four crew members to transmit over the radio. Sophisticated electronics ensure that only the keying operator's voice transmits over the radio. Wireless version available.