Lee Electric #636 EMR Electric Wired Door Chime 16V AC White Molded Cover , specially designed with an operating range of 16V AC. This chime features a UV-resistant plastic that will maintain its original coloring for an extended amount of time. Effectively replace an existing wired door chime. A classic quality design. White finish quality plastic Base. Effortless installation process, Easy to install, Mount, or Replace. Excellent alternative to a wireless model. Two-door model, Can be installed to push buttons in front and to rear doors. This chime is ideal to be used for the house, apartments, plants, and businesses. Includes Chime and Screws For Installation. Dimensions: "7 x "4 x w "2.