General description Wireless Visual Intercom Doorbell featuring a 4.3-inch IPS screen that provides clear images. It includes night vision capabilities with 940nm IR LEDs, allowing for visibility in low-light environments. The device supports 2-way audio communication through a built-in microphone and speaker. Technical specifications Display Screen: 4.3 inch Power Supply: Type-C, DC5V/1A Audio Information: Built-in speaker, microphone Working Humidity: 10% - 80% SD Card Support: Up to 128GB (FAT32) Wireless Mode: 2.4GHz frequency Visual Angle: 120 degrees Night Vision Type: Infrared night vision Working Temperature: -10℃ to 60℃ Signal Distance: Open area 150 meters (may be shorter with thick or metal walls) Battery Capacity: Outdoor doorbell 800mAh, Indoor monitor 400mAh Dimensions: Outdoor doorbell 10.9 x 4.25 x 1.8 cm, Indoor monitor 16.1 x 11.8 x 6.5 cm Compatibility and accessories Extra storage supports max up to 128GB for video recording and saving Package Contents: 1 Video