Equipped infrared night vision, automatically open at night. The light sensor on the doorbell will provide a clear vision in the dark of the night.The doorbell has a built-in microphone and speaker system, which provides two-way high-fidelity conversation all the time. When someone presses the doorbell, APP will receive a notice. After clicking Open, it can have a video call with the visitors outside. No matter at home or outside, you will not miss any visitors

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