Smart WiFi Doorbell Video Camera HD Wireless Security Two-way Intercom Door Bell

Key switch: reset ＊ 1, doorbell button ＊ 1. Low illumination: 0Lux. Antenna: 3DBI 1433 Ant 1. Wireless 433 transmission module: wake up the indoor Dingdong machine. Communication protocol: WIFI, MQTT.

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