M&S Systems DMC3-4 3-or 4-Wire Retrofit Music/Communication System Master Unit (White) - DMC3-4Designed to provide updated functionality & styling in home with existing intercom systems, the M&S Systems 3- or 4-Wire Retrofit Music/Communication System Master Unit (White) runs on existing wires and will replace 3, 4 and 6 wire.Features of M&S System..

M & S Systems Dmc1Rw Weather Resistant Remote Station SpeakerPerfect for outdoor and patio useRemote outdoor speaker and controller for DMC1 systemConnects using CAT 5 wire4 1/4 x 4 1/4Features of M & S Systems Dmc1Rw Weather Resistant Remote Station Speaker Perfect for outdoor and patio use Remote Outdoor Speaker and controller for DMC1 system Con..

M & S Systems Dmc3Rw Retrofit Weather Resistant Remote Patio Station SpeakerThe m&s systems 5 inch 3-wire outdoor radio remote scan station will revolutionize your home audio system with its radio remote scan station with volume, talk/listen, remote volume & source control and 3-wire connection.Features of M & S Systems Dmc3Rw Retrofit Weather Resi..