HEH1011 Features: * Wired or battery operated door chime contractor kit * Material: Plastic and Metal * Offers a basic style with a white cover * Door chime can be hardwired to your home"s existing electrical box or operated with batteries * Chime features a 2-note basic melody for the front entrance Includes: * Includes (1) chime, (1) unlighted push button and (1) transformer Assembly Instructions: * No assembly required Dimensions: * Dimensions: 3.88"" H x 6.5"" W x 1.63"" D Warranty: * 1 Year manufacturer"s warranty