Feature:1. Wireless Video Doorbell System: Instantly view outdoor video when visitors press the doorbell, providing real time updates on your doorstep even when family members without a phone are at home.2. 2 Way Intercom, HD Wide Angle Lens: Equipped with high fidelity microphone and speakers, allowing smooth and clear visual calls at the door, with adjustable volume to avoid disturbing your family. Doorbell camera features 170 degree wide angle 8MP fisheye lens, it captures every detail at your doorstep with no blind spots, ensuring clear visibility of multiple visitors.3. Day and Night Camera: Built in high power infrared night vision light combined with ICR infrared filter, automatically switching between day and night modes for clear visibility in pitch black conditions.4. Built in Power Supply: Both the doorbell camera and display screen come with large batteries, ensuring continuous operation during power outages, providing extra security for your home.5. Waterproof and Anti Theft: The doorbell supports IP65 level dust and waterproof, there are fixing screws between the doorbell and the waterproof shell, and the doorbell can be avoided to be stolen after using the screws to punch the holes for installation.Specification:Item Type: Wireless Video Doorbell SystemMaterial: ABSScreen Size: 4.3 InchesLens Resolution: 8MPLens Type: 170 Degree Wide Angle Fish Eye LensNight Vision Distance: Approx. 5-10m / 16.4-32.8ftSound Pickup Distance: Approx. 5m / 16.4ftDoorbell Battery: Lithium ion Battery 1000mAh (Built in Battery for Shipping)Screen Battery Type: Lithium Ion BatteryScreen Battery: Lithium Battery 400mAh (Built in Battery for Shipping)Memory Card: Maximum Support 128GB (Not Included)Charging Interface Type: Type CWireless Fidelity Version: 2.4GHzWaterproof Level: IP65.Package List:1 x Doorbell Camera1 x Display Screen1 x Display Screen Back Plate1 x Charging Cable1 x User Manual2 x Adhesive Pads6 x Expansion Plugs6 x Screws1 x Small ScrewNote:1. The doorbell is built in with 1000mAh battery, which can be recharged. By pressing the doorbell 5 times per day, with each call lasting 10 seconds, it can work continuously for 3 months. 2. The doorbell's working mode is that when someone presses the doorbell, the camera will start and connect to the display screen. If no one presses it, the display screen will not work and the camera will not turn on. 3. To ensure stable connection, the doorbell is point to point connected with the display screen. Therefore, the doorbell does not support third party devices such as phones, computers, or tablets. 4. If installed using screw holes, the bottom of the doorbell is fixed tightly with screws and the backplate, making it very secure unless forcibly disassembled.5. Transmission distance and usage conditions, the doorbell uses 2.4G wireless fidelity connection. The unobstructed flat transmission distance can reach 30 meters. If there are walls blocking, the distance will be halved. Some strong magnetic doors may have signal interference, which could lead to no signal. Avoid directly installing on the door.