Communication : Sub calls in with tone, press TALK button to reply, sub called by tone or voice, hands-free as sub (with LEM-3 : LED, 20 sec., depress selector button)
Communication Output : 350mW
Wiring : Door/Sub to master: 2-cond., overall shield
Distance : Door/Sub to farthest master: 650’(22AWG) 1,600’(18AWG)