Newhouse Hardware CHM24V White 24-Volt Wired Doorbell Chime | Electrical Door Bell for Homes | Hard-Wired Door Chimes with Front Door Ding-Dong and Rear Tone | Home Improvement Electrical Equipment - Amazon.com
Newhouse Hardware Brass Transformer | Wayfair
Newhouse Hardware CHM1 Two Note Electric Door Bell Bundled with 30TR 16V/30VA Transformer - Amazon.com
Newhouse Hardware 2-Note Modern Textured Design Wired Doorbell Chime, White CHM3D - The Home Depot