1、TFT LCD Display: The 2.4‑inch ultra‑bright TFT LCD display can display images clearly and smoothly. 2、Wide Angle: The 145‑degree wide‑angle lens provides you with a large field of view, 24‑hour security monitoring, and protects you and your family around the clock. 3、Clear Image: Installed in the position of the peephole on the door, the image outside the door is clearly displayed on the screen of the host inside the door, allowing the owner to see the visitors outside the door clearly at home. 4、Advanced Technology: Adopts 32‑bit processor and professional codec chip, with wide dynamic and low illumination function, and supports automatic color conversion to black. 5、Easy Installation: Easy to install and operate, no special tools needed, saving time, effort, and money. Item Type: Door Viewer Material: ABS+Zinc AlloyUse: Household Battery: 3.7V lithium battery 1200mah (built-in battery) USB Power Input: DC5V Screen Size: 2.4in Resolution: 240 x 320 Pixel: 0.3MP Viewing Angle: 145 degree wide angle Camera Function: Support Video Function: Not Support Storage: Support up to 32G storage card (not included) Support Door Thickness: Approx. 35-110mm/ 1.38-4.33in Support Door Hole Size: Approx. 15-25mm/ 0.59-0.98in 1 x Inner Door Machine 1 x Outer Door Viewer 6 x Screw 1 x USB Cable 1 x Manual 1 x Fixed Plate