[Without Viewer]
[With Built-In Viewer]
[With Viewer]
Two-note mechanical door chime and door button with built-in viewer. No batteries or wiring is required with this door chime. The door button has a brass finish and the built-in viewer makes installation easier. please note: this door chime works best for smaller homes, apartments, studios, or offices. It may be difficult to hear this chime from further than 30 feet away.