DESIGNER CHIME DIMENSIONS: 8.25" High x 5.5" Wide x 2.38" Long, Weight 4.9lbs SOUND: 2 Notes on Front Door, 1 Note on Second Door INSTALLATION: Horizontal / Vertical Hanging Position; Must Use at Least 18 Gauge Wire Everywhere (from Button to Chime, Transformer to Chime, and Chime to Chime if Wiring More than One), and Must Use a 16 Volt Transformer UL Approved for INDOOR Locations DETAILS: Rectangular Textured Cover with White Finish