Door Announcer by Alertmaster

Product Description

Hearing impaired individuals can use this functional unit a number of different ways. Use it as a push button door bell, attach it to your intercom or use it to signal a knock at your door. Completely adaptable, it transmits to Basic or Super Systems. A uniquely convenient piece of equipment for the hearing impaired, its useful whether callers ring, buzz or knock. The Alertmaster Door Announcer requires (1) 9-volt battery which is included.