MIRCOM Intercom Vertical Station Fits Into a Single Gang Electrical Box. Made From Durable, White Plastic, The Station is Complementary to any Decor Push-buttons: 3 Momentary Speaker: 2" Speaker Wiring: 4 Common, 1 Selective Amplifier: MA-485A Dimensions: 4" W X 5 7/8" H Single Gang Suite Station • Surface mountable • Contemporary white finish styling • 2" speaker Dimensions: 6.0"(L) X 4.0" (W) X 1.0" (D)