Check the listing for details. TELEX RTS SYSTEMS MRT327 USER STATION STILL IN BOX NEVER USED. Condition: New – Open box. Listed at 250.00 USD. Key FeaturesFor A4F Type HeadsetsCall Signaling: 20kHz Call SignalsDual-Action Momentary SwitchTalk-Off 24kHz Deactivatin SignalMicrophone Limiter The Telex MRT-327 2-Channel User Station is a base station used for RTS TW intercom systems. The station provides flexible routing, microphone input, call signaling, a built in limiter and more. It may be used as a headset or a speaker station with the optional MCS325 modular speaker. The Telex MRT-327 2-Channel User Station is a base station used for RTS TW intercom systems. The station provides flexible routing, microphone input, call signaling, a built in limiter and more. It may be used as a headset or a speaker station with the optional MCS325 modular speaker.An optional rackmount kit may be purchased for installation into a 19-inch rack. Its dual-action on/off switch allows for momentary and latching push-to-talk functions. The MRT-327 can receive 24kHz "talk off" signals for deactivation of the MRT-327's microphone from a remote location. Additional features include a built-in microphone limiter and optional speaker operation.Call signalingDual-action momentary/latching mic switchMicrophone limiterOptional microphone speaker & headset configurationsPowering optionsRemote deactivation