This wired doorbell contractor kit provides a complete solution for new installations, featuring a two-tone chime that plays Ding-Dong or Ding sounds at up to 95 dB volume, along with one lighted push button, one unlighted push button, and a cULus-listed 16V/10VA transformer for reliable operation. | Heath Zenith | | White Plastic Wired Door Chime Kit | Best Buy