Feature: 1. Indoor monitor adopts for Android system, multi‑point 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 Doorbell Material: ABS + Iron Shell + Aluminum Alloy Uses: Villas, apartments, residences, hotels, offices, public buildings, etc. Plug Voltage: 100-240V Light Source: 850 infrared light Infrared Distance: Approx. 3 meters/9.8ft Effective Distance: Approx. 100 meters/328.1ft Viewing Angle: 92° Indoor Unit Function: Automatic photo, visitor record APP Remote Access: Supports up to 5 users Memory Card: Maximum support 32G (not included) Working Temperature: -10-50℃ AHD Camera Camera Sensor: 1/3 inch AHD Viewing Angle: 92° Picture Quality: 720P Night LED: Infrared LED Rainproof, 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 Adapter Note: 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.