Item Type: Door Viewer Material: Plastic + electronic components Monitor Size: Approx. 8 x 8 x 2cm / 3.1 x 3.1 x 0.8in (±1-2cm) Camera Size: Approx. 6 x 6 x 5cm / 2.4 x 2.4 x 2in (±1-2cm) (without wire) Camera Cable Length: Approx. 15.5cm / 6.1in (±1-2cm) Monitor Battery Model: Lithium Battery (Included) Monitor Battery Capacity: 600mAh Language of Menu: Chinese/English Door Hole Diameter: Approx. 14 ~ 28mm / 0.6 ~ 1.1in Applicable Door Thickness: Approx. 35 ~ 120mm / 1.4 ~ 4.7in Infrared Night Vision: 2pcs 2 850nm infrared night vision lamps Record Mode: Take photos Visual Angle: 90° wide Angle Lens Pixel: 300,000 High definition camera Screen Size: 2.4-inch LCD screen Doorbell: Supported Characteristics: Built-in memory/circular storage 1、180 Days long standby time, designed with built?in memory and no need for inserting storage card. 2、2.4inch Display screen and 90 degrees visual angle, suitable for home use and having clear image display. 3、300,000 Pixel high definition camera and designed with 2pcs 850nm infrared night vision lamp, convenient to use. 4、Come with USB cable of the package, easy and convenient for charging and with screws for easy installation. 5、Built?in memory can store about 80pcs photos and including manual of the package for simple using. 1 x Camera 1 x Monitor 1 x USB Cable 3 x Screw 1 x Manual