Digital Door Viewer 2.4 Inch 720P LCD Screen Infrared Night Vision 160 Degree Lens View 4 AAA battery (excluded) 　 Feature: Product Name: Door Viewer Material: Plastic Product color: Gold Product size: 10.2x9.6x2.1cm/4.01x3.78x0.83in Packing size: 12.7x12x9cm/5x4.72x3.54in Net weight：0.192kg/0.422lbs Gross weight: 0.266kg/0.585lbs Screen resolution: 640×480 Camera: 1.3 megapixels Viewing angle: 160 degrees Screen size: 2.4 inches Suitable for door hole diameter: 15-50mm Suitable for door thickness: 35-110mm Power supply: 4 × AAA batteries (not included) card: maximum support 32G (not included) Description: 【Larger Screen & Clear Image】This is an antitheft, antipry, and antipeeping door eye, similar in appearance to traditional optical door eye. 2.4inch TFT LCD screen and profession-al security highdefinition camera allow you to clearly watch the visitors outside the door. 【160 Degree Wideangle】160 degree wideangle lens, equipped with different sizes of mounting screws to meet most of your indoor and outdoor door eye doorbell installation. 【Humanized design】Supports up to 32G memory cards (not included). When the memory is full, the system automatically overwrites the previous photos in chronological order, without the need to clean up the content regularly. 【Photo Shooting And Storing】The door viewer has the function of photo shooting and storing, and the function of photos for suspicious persons can be used to backup data in for emergency needs. 【Easy to Install】Minimalist design, extremely easy to operate, fast and efficient installation, no need for professionals. NOTE:you have to drill a hole on your front door before installation.it is not wireless. Package Included: 1×Indoor unit 1×Outdoor unit 1×Metal bracket 1×Manual 1×Screw package