Heath Zenith SL-2796-02 Basic Series Wired Door Chime, White White Cover Horizontal Accent Lines 2 Sounds- Ding Dong and Ding 90 Decibel Max 1 year warranty Hardwired door chime (powered by 16-volt/10-watt or 16-volt/15-watt transformer) For use with hardwired doorbell systems Distinctive 2- and 1-note chime melodies distinguish front and back doors White molded cover with unique flowing-line design 7.25 by 2 by 4 inches Hardwired door chime (powered by 16-volt/10-watt or 16-volt/15-watt transformer) For use with hardwired doorbell systems Distinctive 2- and 1-note chime melodies distinguish front and back doors White molded cover with unique flowing-line design 7.25 by 2 by 4 inches