Features: 1.Digital Door Viewer Peephole: 1080P ultra HD camera, 135 degree viewing angle, dynamic security in front of the door, is your safe life steward. 2.Multifunctional: With automatic video recording, human body detection, color night vision and other functions, can be used as a doorbell is also monitoring. 3.Photographing Without Feeling: Any movement at the door, the first time you feel no photo or video, real time check the state of the door. 4.Environment Detection Function: 24 hours environment detection function, active monitoring camera probe, equipment detection automatic recording, detection time can be adjusted. 5.Color Night Vision: Equipped with color and black and white night vision optional function, automatically open at night, night without lights can see clearly. specification:Item Type: Digital Door Viewer Peephole Material: Plastic, Electronic Model: A7 Screen Size: 4.5 Inch Pixels: 2MP Viewing Angle: 135 Degrees Memory: Up to 32g Memory Expansion (not Included) Automatic Cycle Coverage: Supported Color Night Vision: Support (color black and White Night Vision Optional) Human Body Sensing Function: Support Automatic Capturing: Support Sound Video: Support Screen Playback Video Picture: Support Mobile Remote Viewing: Not Supported Battery Type: Removable 2500mah Matched Lithium Battery PackageList:1 x Host 1 x Sub Machine 1 x Screw Pack 1 x Stainless Steel Hanging Plate 1 x Charging Cable 1 x Supporting Battery 1 x User Manual NoteThe machine does not come with memory, you need to buy a memory card to take photos and videos