The RS-701 is a single-channel analog beltpack intercom system featuring high performance audio for use in a wide variety of environments and it has 4-pin male headset connector and 3-pin female/male loop through intercom line connectors. A mic preamp with a dynamic range of 130db enables intelligible voice communication for every volume level, from a whisper to a shout. The beltpack also combines high headroom, low-noise audio and shaped frequency contour to deliver crystal-clear audio. The RS-701 is compatible with all Encore partyline products, as well as the PL-Pro line and other partyline systems via Encore interfaces.