Feature 1Minimalist design, extremely easy to operate, fast and efficient installation, no need for professionals, 2.4inch TFT LCD screen and professional security highdefinition camera allow you to clearly watch the visitors outside the door. 2Builtin memory, no need to insert a card, automatically overwrite the farthest date for storage, eliminating your problems about storage. 3It has the function of shooting and storing, and the function of taking photos for suspicious persons can be used to backup data in time for emergency needs. 490 degree wideangle lens, equipped with different sizes of mounting screws to meet most of your indoor and outdoor door eye doorbell installation. 5This is an antitheft, antipry, and antipeeping door eye, similar in appearance to traditional optical door eye.Condition: Brand New Item Type: DoorEyeMaterial: ABS PlasticColor: BlackScreen Size: Approx. 2.4inMaterial: ABS Engineering PlasticScreen Resolution: 320 x 240Viewing Angle: 90Storage Method: Internal Memory, Circular StorageSuitable for Door Hole Diameter: Approx. 14-28mm / 0.6-1.1inBattery: 600mAh Non-Removable (Built-in)Suitable Door Thickness: Approx.35-120mm / 1.4-4.7inCamera: 0.3MPSize:Indoor Unit: Approx. 80 x 80 x 16mm / 3.1 x 3.1 x 0.6inOutdoor Unit: Approx. 32 x 7mm / 1.3 x 0.3in in DiameterUse Environment: -20-55 .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Manual4 x Screw1 x USB Cable1 x Indoor Unit1 x Outdoor Unit