Product description: Use the existing door without breaking the door structure without the need of drilling, no wiring and installation can be used. The product is equipped with intelligent operating system and user-friendly design. It is easy for old and children to use, to protect your family security. Digital doorbell’s full system just use your fingertips.No apps required and no more having to check you phone just to see who is at the door?Children-senior is friendly. The Doorbell is easy to installation only use a few minutes,no need to access home electricity.You can standby more than 7 months with just use four good batteries.because the doorbell is low-power consumption and battery shortage will be warn that you can charge just by removing the side. Technical specification: 1.Display screen: 3.5 inches LCD Color screen,Resolution of 480＊320 2.Image sensor:2.0 mega pixel camera resolution 3.Real viewing angle:120º real viewing angle 4.Supply power:4pcs AAA batteries 5.Door hole diameter:14-28mm 6.Door thickness:40-100mm 7.Indoor device size:diameter 32mm 8.Outdoor device size:118x62mm Function operation: Pressing power button to display image,through the display screen to observe the screen outdoor, after 15s,the unit will be off automatically. 1.power on : pressing power button 2.Power off : power off after automatically after power on 15s; During power on status,pressing power button 3s to make power off,too Standard package: 1.Indoor unit(monitor) : 1pc 2.Outdoor camera : 1pc 3.Screws : 3 pairs 4.Mental bracket : 1pc 5.User manual : 1pc
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