RRP100 Multi Radio Interface for Rugged Intercoms connects 3 mobile or handheld radios and a cell phone to any Rugged intercom system, featuring powerful clear communications, rugged design, quick and easy installation. It offers Triple Radio connection ports with independent audio gain controls and is compatible with any radio manufacture’s mic level. The transformer-based connections accept any input configuration. Additional features include Quick Lock™ easy install connections, cell phone port with audio gain, Single or All transmit switches, Monitor or TX selectable mode, and independent radio volume controls. It's designed with 100% shielded RF housing, extruded aluminum construction, gaskets to seal moisture and dust, surface mount circuit design for clear audio performance, and Quick Lock™ cables with 100% shielding for reduced RF interference.