Panel/5-Wire Electret Cond Mic. Use With S.T.R. 5-Wire Lobby Entrance Stations Or 5-Wire Handset Units. With Housing
PANEL/5-WIRE ELECTRET COND MIC. USE WITH S.T.R. 5-WIRE LOBBY ENTRANCE STATIONS OR 5-WIRE HANDSET UNITS. WITH HOUSING..
PANEL/5-WIRE ELECTRET COND MIC. USE WITH S.T.R. 5-WIRE LOBBY ENTRANCE STATIONS OR 5-WIRE HANDSET UNITS. WITH HOUSING..