Feature: 1. Usage: Extensively used in apartments, villas, hotels, offices, public buildings, etc. Come with its own power supply and terminal blocks, you can install by yourself. 2. 7in Monitors: Using HD digital LCD and multi point capacitive touch screen, more stable and easy to operate, with visitor recording, calendar, monitoring, intercom, unlocking, taking pictures and video playback functions. 3. Indoor Monitor: The indoor monitor can be connected to a wireless WIFI router (not included), can take pictures manually or automatically, and supports up to 32G memory card (not included). 4. With OSD Menu: Adjustable volume, brightness, contrast and color, adjustable unlock delay time, support English, Russian, French, Spanish, German and Chinese 6 different languages. 5. APP Remote: The indoor monitor can be connected to 5 mobile APP users, and the mobile phone can be viewed and unlocked, and it can also communicate with for TUYA smart APP. 6. Outdoor Machine: Make use of AHD/CVBS camera with IR‑CUT. Anti oxidation and abrasion resistance, with rain cover, it is more convenient to install on the wall. 7. Features: The superior wired video door bell can be directly connected to an electric lock, with an unlocking delay setting, and can support 1V1 to 1V6, 2V1 to 2V6. Specification: Item Type: Video Doorbell Material: ABS Application: For apartment, villa, hotel, office, public building Outdoor Machine: Power Supply: Powered by the indoor monitor, if it is a digitally controlled electric door lock, please connect one more to the power supply. Camera: AHD/CVBS LED: 850nm IR LED Power: Standby: 2W, Unlock: 12W Night Vision Distance: Approx. 3m/9.8ft Effective Distance: Approx. 100m/328ft (4x0.75mm²) Camera Angle: 92° Working Temperature: -10 to 50℃ Indoor Monitor: Power Supply: Input AC100-240V 50/60Hz, Output DC15V/1.2A LCD Display: 7in TFT 1024x600 Effective Area: Approx. 154.08x86.58mm/6.1x3.4in (H x V) Power: Standby: 3W, Unlock: 8W Button: Multi-point capacitive touch screen Talk Time Delay: 60s±10% Monitoring Delay: 60s±10% Indoor Monitoring Function: Automatic photo, visitor recording Storage: Maximum support 32G memory card (not included) APP Users: Supports up to 5 users Working Temperature: -10 to 50℃ Languages: English, Russian, French, Spanish, German and Chinese.. Package List: 1 x Outdoor Unit 3 x Screen3 x Power 3 x Screen Hanging Board (Installed on the Screen) 6 x 4p Terminal Line1 x 2p Terminal Line2 x Ethernet Cable3 x Connection Line16 x Screw16 x Expansion Tube1 x Manual Note: 1. The machine should be placed in a sturdy, well‑ventilated, dry place, without direct sunlight, strong magnetic field and dust;2. Do not use chemicals to clean the surface; a clean, soft dry cloth (not included) can be used.3. Avoid pressing multiple keys at the same time;4. The outdoor unit and indoor unit must be used in conjunction with the designated model, and must not be mixed with other models or products of other companies.5. Do not open the machine without authorization.