HEH1010 Features: * Wired door chime transformer * Material: Plastic * Transformer with UL approved rough-in box Includes: * Kit includes a junction box with a preinstalled transformer Specifications: * Supply Power: 16 Volt-10 watt Assembly Instructions: * No assembly required Dimensions: * Dimensions: 4.13"" H x 6.38"" W x 3.25"" D Warranty: * 1 Year manufacturer"s warranty