The 4.3-inch IPS screen and 2.4-inch wireless visual intercom doorbell are powerful smart home products. This doorbell adopts advanced wireless technology, which can connect with mobile phones or other devices, allowing you to watch the situation at the door anytime, anywhere through your phone. It is equipped with high-definition video monitoring function, which can provide clear images and videos. Through the built-in camera, you can view visitors in real-time and make two-way calls to communicate with them. Features: 【Wireless Visual Intercom Doorbell】: Our 4.3-inch IPS screen 2.4 wireless visual intercom doorbell provides a clear and wide view, allowing you to see who's at the door without opening it. It's a smart doorbell that offers high-definition video monitoring for your home. 【Long Battery Life】: Equipped with an 800mAh polymer battery, the doorbell can last up to 2 months with 10 daily presses after a full charge. Please note that the further the distance, the more power it consumes. 【Large Storage Two-way Intercom】: The doorbell supports up to 256GB SD card, allowing you to store a large amount of video footage. The 2.4G transmission allows for internet-free interconnection and supports two-way video intercom, providing a convenient and secure way for you to communicate with visitors. 【Easy Installation Low Power Consumption】: The doorbell is wireless and easy to install. It features a built-in speaker and microphone, and is powered by 2A/DC 5V. It offers ultra-low power consumption and long standby time. Please note that the monitor needs to be connected to an external power source for long-term use. The built-in battery is only for temporary use and should not be used without an external power source for a long time. Specifications: Display Screen: 4.3 inches Power Supply Information: DC5V/2A Audio Information: Built-in speaker, microphone Working Humidity: 10% -90% SD Card: Supports up to 256GB WIFI Mode: 2.4G Visual Angle: 70 degrees Night Vision Type: infrared night vision Working Temperature: -10 °~60 ° Video Processing Rate: 640x480 Image Sensor: GC0328 Working Humidity: 20% -80% RH SD Card: Supports up to 256GB Night Vision Type: Infrared night vision Working Humidity: 10% -90% Wireless Distance: Open 100m/328ft, other 20m/65.6ft Battery Capacity: 800mah. After being fully charged, press 10 times a day for up to 2 months (the farther 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 Doorbell 1 x Display 1 x Charging Cable 1 x User Manual 1 x Large Base Plate 1 x Small Base Plate 1 x Large Back Sticker 1 x Small Back Sticker 1 x Screw Set