Super Long Working Distance
The wireless doorbell kit supports 1000feet (300m) operation range in open space. If there are many obstacle (doors walls), the working distance still can reach up to 100-500 feet.
Over 50+ Melodies
There are 52 melodies for your option. Just press the forward button and back button to choose your favorite ringtones.
4 Levels of Adjustable Volume
With a volume button, you can adjust 4 levels of the volume from 25db-110db.
Easy to Leave Message
There is a transparent compartment at the bottom of the transmitter that you can leave message or they can leave some message to you.
Just plug receivers into the electrical outlet (no batteries required for main receiver) and install the transmitter through included double-sided tape or screws/anchors. No requirement for wiring.
Note: The battery for transmitter has been installed. Please pull out the insulating strip before using.
Battery in Transmitter: 12V 23A alkaline battery
Power Consumption of Transmitter<10mW
Operation Range: 1000 feet (Open Space)
Working Temperature: -30℃~70℃
1*Transmitter (DC powered & A 12V 23A alkaline battery included)
2* Receivers (AC powered)
1*Double-sided adhesive tape