The M&S BD3N Intercom Door Station is compatible with the DMC1 and DMC3-4 Music/Communication Systems. This Door Station is recessed mounted using the ME3 door station rough-in enclosure or can be Surface mounted using the DS3BXW Surface Mount Housing.
The D3N is a voice communication interface that is mounted adjacent to a primary entry door. The existing doorbell is used to announce the visitor and the built-in speaker allows 2-way voice communication between the visitor and the resident.