Video Doorbell Smart Wireless WiFi Security Door Bell Necklace Closed way: Zipper

Closed way: Zipper

Size（cm） S  M  L  XL  XXL   Waist 60  64  68  72  76   Thigh 50  52  54  56  58   Length 98  99  100  101  102  Asian sizes are 1 to 2 sizes smaller than European and American people

volume adjustment

54CM OR 1CM=0

Video Doorbell Smart Wireless WiFi Security Door Bell Necklace Closed way: ZipperOverview: 1. Three 18650 specification batteries. 2. Million HD pixels collocated with 166 degree wide angle lens 3. Support mobile phone remote fast wake up device within 1 second. 4. 2. 4G Wi Fi connection 5. High quality two way talk with noise cancellation 6. Support PIR motion detection, when someone hovers at the door, immediately alerts push notifications to the mobile phone. 7. Day and night mode automatic switching, whether day or night, the