2.4 Wireless visual intercom doorbell is a smart home device designed to protect home safety. It has a two-way intercom function, which can achieve interactive communication with visitors. This product has a high-definition wide-angle lens, which can provide a clear and broad field of view. In addition, it has an ultra long battery life, providing users with long-lasting usage time. This doorbell has a wide field of view and is equipped with an 800W fisheye wide-angle lens, providing a 170 ° ultra large wide-angle view. Clear and visible images can be obtained from top to bottom and from left to right. In addition, it is equipped with a high-definition night vision device and LED dark scene fill lights, which can automatically turn on at night, ensuring clear visibility even in dark environments. Features: Enhanced Home Security: This 2.4 wireless video doorbell provides an extra layer of security for your home. With its smart visual intercom feature, you can easily monitor who's at your door and communicate with them without opening the door, ensuring your home's safety. High Definition Wide Angle: Equipped with an 800W fisheye wide-angle lens, this doorbell offers a 170° super wide-angle view. It provides a clear, broad view from top to bottom and left to right, allowing you to see everything clearly. Long Battery Life & Easy Installation: This wireless doorbell boasts a long battery life, ensuring it's always ready when you need it. Plus, with its wireless BT connectivity, there's no need for internet connection, wiring, drilling, or installation. It's easy to set up and use. Automatic Photography & Built-in Storage: The doorbell automatically captures high-definition images when the bell rings, providing you with clear visuals of your visitors. It also features built-in storage, allowing you to keep a record of your visitors for future reference. Clear Night Vision: With its LED dark scene supplement light, this doorbell ensures clear visibility even at night. The light automatically turns on in the dark, allowing you to see who's at your door clearly regardless of the time. Specifications: Display Screen: 4.3 inches Power Supply: DC5V/2A Audio Information: Built-in speaker and microphone Connection Method: BT interconnection TF Storage Card: supports expansion Perspective: 170 ° Night Vision Type: LED auxiliary lighting Working Temperature: -10 ° -60 ° Open Space Distance: 50-60 meters is better, but in the case of obstacles, it is about 20 meters (specific to the material of the obstacle) Supported Format: MJEPG Pixel: 1080P Battery Capacity: 1000mAh. After being fully charged, press 10 times a day for up to 2 months (the further the distance, the more severe the power consumption) Notes:1. The monitor needs to be connected to an external power source for long-term use.2. The built-in battery is only for temporary use.3. Do not use without an external power source for a long time. Packing List:1 x Wireless Doorbell1 x Display1 x Charging Cable1 x User Manual1 x Large Base Plate1 x Small Base Plate1 x Large Back Sticker1 x Small Back Sticker1 x Screw Set