2.4-inch infrared smart video doorbell, digital peephole, photo doorbell, black. 2.4-inch smart video doorbell. Specifications: StatNio. Product Type: Door Viewer. Material: ABS plastic. Color: Black. Screen size: Approx. 2.4 inches. Material: ABS plastic. Screen resolution: 320 x 240. Viewing angle: 90°. Storage method: Built-in storage, cyclic storage. Compatible door hole diameter: Approx. 14–28 mm. Battery: 600 mAh non-removable (built-in). Compatible door thickness: Approx. 35–120 mm. Camera: 300,000 pixels. Package contents: 1 x User manual, 4 x screws, 1 x USB data cable, 1 x Indoor unit, 1 x Outdoor unit. + Product. Minimalist design, extremely simple operation, quick and efficient installation, no professional involvement required. A 2.4-inch TFT LCD screen and a professional HD security camera allow you to clearly observe visitors at your door. Built-in memory eliminates the need for memory cards. The oldest information is automatically overwritten, preventing storage issues. The photo and storage functions, as well as the ability to photograph suspicious persons, can serve as a data backup in emergencies. A 90° wide-angle lens, equipped with mounting screws of various sizes, is suitable for most indoor and outdoor doorbell installations. This door viewer is theft-, burglary-, and hacking-proof, with an appearance similar to a traditional optical door viewer. Specifications: Indoor unit: approx. 80 x 80 x 16 mm. Outdoor unit: approximate diameter: 32 x 7 mm. Operating environment: -20 °C to 55 °C.