2.8 inch TFT LCD Screen Digital Doorbell 0.3MP IR Night Vision Electronic Door Peephole Camera Viewer Door Bell. Features include infrared night vision, doorbell sound, camera function, built-in memory, and minimalist design. Specifications include 2.8 inches screen size, 320 * 240 screen resolution, built-in 4MB memory, and 0.3MP camera pixel. The product is made of ABS engineering plastic and has a viewing angle of 90 degrees. It is suitable for door hole diameters of 14-22mm and door thickness of 35-120mm. The product comes with an outdoor doorbell, indoor unit, metal plate, screws, and a manual.