Campanello audio video bidirezionale smartphone telecamera campanello citofono di sicurezza anello

Switch between 6 Dingdong music in the indoor unit. Two-way intercom: video two-way intercom. Size: doorbell 87.2 50mm, display screen: 1851 115mm. No WIFI video doorbell, more secure information;. Ultra-low power consumption of doorbell, ultra-long standby;.

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