What we know as a doorbell is a square box that strangely enough says nothing about what a doorbell really is: an appliance consisting of an electromagnet, a hammer and two sound sources.
DROOG DOORBELL ‘BOTTOMS UP’
What we know as a doorbell is a square box that strangely enough says nothing about what a doorbell really is: an appliance consisting of an electromagnet, a hammer and two sound sources.