Wireless WiFi Video Smart Doorbell Phone Door Ring Intercom Camera Security Bell 2-3 pieces 18650 batteries work for 5-8 months Megapixel HD ultra thin wide angle lens Support mobile phone 1 second rapid wake up function 2.4G wifi connection High quality two way audio without noise Day and night mode switch automatically no matter of day or night, image is clearly visible to escort you and your family all the time Support PIR function, when someone is wandering in front of your door it will push alarm message to your mobile phone immediately
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