Up to four remote microphones can be connected to the RM-200M Remote Microphone but the maximum connection length for all cables is approximately 800 meters. An external microphone input terminal is provided to allow using a headset microphone, along with built-in internal compressor circuitry to ensure broadcasts are always clear and distortion-free. The TALK button may be a PTT or lock-type, which also provides an "AUTO MIC Off" capability to automatically switch off the microphone if the TALK switch is inadvertently left on. The emergency activation button is equipped with a cover in case of accidental selection.