Call Audio Master Station Indoor Height (In.) 2 in Width (In.) 8 3/16 in Depth (In.) 6 in Door Station Height (In.) 2 in Door Station Width (In.) 8 3/16 in Door Station Depth (In.) 6 in Master Depth (In.) 2 in Master Height (In.) 8 3/16 in Master Width (In.) 6 in Distance (Ft.) @ 18AWG 1 600 ft Distance (Ft.) @ 22AWG 650 ft Wiring Conductors 12 Conductors Wire Type Shield Power Source 12V DC Voltage 12V DC For Use With LE Series Includes Mounting Hardware