Xiaomi Smart Door-bell 3 - WiFi Smart Intercom Ring Security Phone Camera 2K

Smart doorbell x 1. Audio system:Two-way voice calls. Wireless connectivity:Wi-Fi IEEE 802.11b/g/n 2.4GHz, RF 433MHz. Wireless connectivity:RF 433Mhz (receiving only). Battery capacity:5200 mAh (TYP).

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