• Power by 2 x AA Battery ( Battery Not Included)

This door bell is 100% brand new and high quality. It is easy to install without dealing with all those annoying wires， just install the batteries， mount the unit and you are ready to go!

Features:
Wireless system
Super long receiving distance
Environmental-friendly and energy-saving
38 ring tones for choice， 3 volume level for selection
Music choice and music circulation choice

Note: don't install this product in the sunny or rainy place.