Wired Door Chime - White Molded Cover With Fine Flowing Lines.
Amazon.com
Heath Zenith's 96/M-B door chime is intended for hardwired installation, and may be used with one or two doors. It features two distinctive chimes, one for the back door and one for the front, so you'll know which door to head to. Powered by 16-volt AC transformer, sold separately (see Heath Zenith accessory #121AC-A).--Josh Dettweiler
What's in the Box Chime, hardware kit
From the Manufacturer
Wired Door Chime - White Molded Cover With Fine Flowing Lines
2-MELODIES: features two mechanical melodies to choose from - Ding-Dong or Ding - with 85dB loudness
SMART COMPATIBILITY: compatible with most standard power modules used with smart wired doorbell buttons
REQUIREMENTS: this 2-tune doorbell chime requires: a 16VAC-10VA low voltage transformer, bell wire, and a wired doorbell button (not included)
INSTALLATION: this chime box can be installed vertically or horizontally - instruction sheet included
WARRANTY: this mechanical doorbell chime is guaranteed with a 1-year limited manufacturer's warranty
WHITE PLASTIC CONSTRUCTION: with a neutral color palette you can easily place this box anywhere in your home, without being an eye-sore
DOORBELL BUTTON (NOT INCLUDED): works with ANY wired doorbell button rated for at least 16VAC - ideal for wired doorbell chimes and new home installations
