(intercommunication device) an electronic two-way communication system with at least one microphone and loudspeaker at each station for localized use. Utilizing a variety of microphone/speaker units that connect either wirelessly or via cable to a central control panel, individuals can use intercoms for a number of purposes. Most commonly intercoms are found in control and command applications including (but not limited to) warehouses and construction sites; film studios and theaters; and military commands and search and rescue operations.