Special Features: Features: One 2-Note, White Door Chime; Two Lighted White Pushbuttons; One (C905) Transformer; Sold in Packs of 24; Replaces Nutone Cd125whbulk; Replace: Nutone Cd125whbulk; Pushbutton Size: 3/4 in Depth X 1 in Width X 2-7/8 in Height; Transformer Va Ratin