Special Features:

Plena 6-zone high quality call station; stable metal base design; flexible microphone stem; unidirectional condensor microphone; intended for making calls to selected zones (1-6 and allcall) in a pa system built around the lbb1990/00 voice alarm system

Properties:

An item which may provide two-way amplified voice communications when connected to one or more like stations directly or via intermediate control equipment; includes loudspeaker (which may be used as a loudspeaker or microphone), signalling devices, amplifier and station selector switches. May include separate microphone, earphone, handset or headset. See also, telephone connecting station.