Weather-Resistant Talkback Speaker Surface Mount Includes Call Button ("CALL" in Braille) Gray Plastic Housing CE Valcom Power UnitsEvery Valcom product is marked with either a positive, negative or neutral power unit. Simply add up the negative power...

Weather-Resistant Talkback Speaker One-Way Screws Call Button Mounts In Standard Double Gang Electric Box 11 Gauge Steel, White Paintable Faceplate CE Valcom Power UnitsEvery Valcom product is marked with either a positive, negative or neutral power...

Valcom V-1072A-ST Flush Mount Door Plate Speaker Stainless Steel Weather-Resistant Talkback Speaker Includes Call Button("CALL" in Braille) Mounts In Standard Double Gang Electric Box Stainless Steel or Brass Faceplate CE 0 Valcom Power...

Flush mount doorplate speaker Talkback Weather resistant Includes "CALL" button (includes Braille) Mounts in standard double gang electric box Dimensions: 4.5"H x 4.5"W x 1.3"D Brass VALCOM POWER UNITS (0) Valcom Power UnitsEvery Valcom...