Broan RC105 two-note door chime is white in color, Handy device can be used for one or two doors, Door chime plays one note for back door and two notes for front door, , Door chime only, , To be wired to existing doorbells or with new ones, Uses a 16-volt transformer (sold separately), Measures 8, 125 inches wide x 5, 5 inches high x 2 inches deep, Materials: Steel, Dimensions: 8, 0x6, 0x2, 0 SKU: CITPNT310