Wireless Door Intercom
These devices transmit the audio over the Electrical ring main of the building. No cabling is required.
Features include two way handsfree operation, indicator lights for talk and power on, adjustable volume control and channel selector switch.
They are ideal for use where installing cables causes problems. Simply plug each Device into a 240V 3 pin outlet, select 1 2 or 3 for each device and you are ready to go!