A Buzzer Mis-marketed as a Door Chime

This signalling device from Miami-Carey is confused. The top of the box says this is a door chime, yet the side of the box says it’s a buzzer. There is no ding-dong melody here. Not even a single ding. It’s a buzzer.

ManufacturerMiami Carey, a Jim Walter Company
Location of ManufacturerMonroe, Ohio
Date of ManufactureEstimated 1970s
MaterialsStamped steel. Cardboard Box
Dimensions1 1/2 inches wide, 3 1/8 inches tall, 1 inch deep