Traditional optical cat eye. professional security cameras: you can better understand the situation in front of the door. 90 degree wide angle: wider field of view, more comprehensive observation, no dangerous blind spot in the name. Multi-functional surveillance camera: anti-theft, anti-pry, anti-cat's eye. Faithful guardian of you and your family. Watch Clearer Images: Detailed video on the 2.4 inch high-definition LCD screen lets you see details even in dim or low-light conditions. Easy-to-use photo storage: you can monitor the outside through the indoor machine, you can take photos and store them, and bring your own memories. Built-in lithium battery: ultra-long standby design, easy to use. Weather Resistance: Designed to withstand high temperatures, cold weather, rain or sunlight. Function: screen Size: 2.4 inch Inner host power: 3.7V 600mAh Viewing angle: 90 Pixel: 0.3MP Resolution: 320*240 RAM: Load cycle storage in ILEDS device : 2 pieces, 850nm Door Hole Size: 14-30mm Door Thickness Size: 35~100mm Temperature: -20~55 Material: ABS