About the BROAN-NUTONE BK120NBWH CHIME 2 UNLIGHTED PUSHBUTTON 1 STD TRANSFORMER
WIRED DOOR CHIME; WHITE COLOR; 16 V 10 VA TRANSFORMER POWER SUPPLY; CONTENTS (1) CHIME, (1) 16 V 10 VA TRANSFORMER, (2) UNLIGHTED PUSHBUTTON; SIZE 9 INCH W X 2 INCH D X 5 INCH H