The product is required to install batteries for use!!!

 

Features:

Special Note:

1. AC doorbell, receiver (indoor unit) use household power supply, just plug it directly into the socket, no battery, convenient for environmental protection! The transmitter (outdoor unit) uses one battery    for about one year

2. Super reception is suitable for homes, office buildings, hotels, buildings, dormitories, factories, construction sites, etc.

3. Using the same doorbell in a range will not interfere with each other! The use of wireless high-frequency transmission technology, same frequency and different codes, effectively avoids the troubles caused by mutual interference and false noises between neighbors.

 

Specifications:
 

 Easy Installation:

Package includes:

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