Feature 1 Remote Video Call: After connecting the doorbell with the indoor monitor, the indoor monitor can view the outdoor camera's video. Even if the elderly or children at home don't have a mobile phone, they can still see the situation at the door by checking the monitor. 2 High Fidelity Microphone: 2 way audio design, equipped with a high power speaker and high sensitivity microphone, allowing clear and smooth visual communication at the front door. Supports adjustable volume to avoid disturbing family members. 3 HD Camera: The new generation wide angle lens captures the entire front door area, leaving no security blind spots and providing clear visibility for multiple visitors. The HD camera can capture 1080P level videos, recording every detail vividly. Allows you to see the facial details of visitors clearly. 4 Day and Night Camera: Built in high power infrared night vision lights, combined with ICR infrared filter, automatically switches between day and night modes. Even in pitch black environments, you can still see clearly and capture clear footage. 5 Built in Power Supply: Both the doorbell and the indoor monitor are equipped with large batteries. Even in the event of a sudden power outage, the low power doorbell and monitor can still operate for a period of time, continuously protecting your home security.Item Type: Wireless WiFi Video Doorbell Intercom SystemMaterial: ABSWeight: Approx. 435g / 15.3ozLens Angle: 70 DegreeNumber of Infrared Lights: 4Night Vision Distance: 5-10mPickup Distance: 5m / 16.4ftStorage Method: Memory Card (Not Included) (Supports up to 256GB)Doorbell Camera Battery Type: 800mAh Lithium Ion Battery (Shipped with)Monitor Battery Type: 400mAh Lithium Ion Battery (Shipped with)Charging Interface Type: Type CWiFi Version: 2.4GHz Package List1 x Wireless Doorbell Camera 1 x Monitor1 x Charging Cable1 x User Manual1 x Large Base Plate1 x Small Base Plate1 x Large Adhesive Pad1 x Small Adhesive Pad6 x Expansion Tube6 x Screw1 x Small Screw