DIGOO DG-HOSA 433MHz Wireless Remote DoorBell Button
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<b>[Product Information]</b><br>
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<li>What is the Function?You can stick the button near the door,when the courier or your friend visit your home,they press the botton,the alarm system will ring the voice“DingDong”to remind you that have someone out of the door.</li>
<li>What is the detecting distant?50-70m.</li>
<li>What is the size?45mm Diameter Round(It is about the size of the Digoo M1Q lens.)</li>
<li>What is the color?Black & Silver, Looks Tiny & Great.</li>
<li>What is the working power?Includes Button Batteries(Already includes for your convenient using),and if the battery run out,the battery can be changed.</li>
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