Feature:1. Indoor monitor adopts for Android system, multipoint capacitive touch screen, stable and easy to operate.2. The indoor monitor can take pictures manually or automatically, and supports up to 32G memory card (not included).3. Support mobile APP monitoring, with intercom, photo, video, and unlock functions.4. Connect the indoor monitor to the wireless wifi router, and connect the mobile phone to the monitor, then you can use the mobile phone to record video or open the door, etc.5. Wide range of applications, suitable for villas, apartments, residences, hotels, offices, public buildings, etc.6. It comes with adapter and cable, which can be easily installed, and the outdoor camera can be connected to the indoor monitor through a 4P cable.Specification:Item Type: Video DoorbellMaterial: ABS + Iron Shell + Aluminum AlloyUses: Villas, apartments, residences, hotels, offices, public buildings, etc.Plug Voltage: 100-240VLight Source: 850 infrared lightInfrared Distance: Approx. 3 meters/9.8ftEffective Distance: Approx. 100 meters/328.1ftViewing Angle: 92Indoor Unit Function: Automatic photo, visitor recordAPP Remote Access: Supports up to 5 usersMemory Card: Maximum support 32G (not included)Working Temperature: -10-50AHD CameraCamera Sensor: 1/3 inch AHDViewing Angle: 92Picture Quality: 720PNight LED: Infrared LEDRainproof, dustproof, and vandal-proof.Package List:1 x Indoor Monitor 1 x Outdoor Camera 2 x ADH Camera2 x BNC Cable8 x Screw8 x Expansion Tube1 x Manual 5 x Terminal Cable1 x Power AdapterNote:The doorbell supports for Tuya APP, which can be downloaded before use. After the doorbell is installed, follow the instructions of the manual to complete the binding of the APP, or to set and turn on other functions. Please read the manual carefully.