General description You can connect more than 3 7'' slave monitors and 2 doorbells to this 7 inch Wired Video Intercom System. All connected devices can see, hear, speak to the outdoor camera, and unlock the door. The system features a waterproof door phone camera, supports recording and snapshot functions, and is designed for reliable performance in various weather conditions. Technical specifications Screen Size: 7 inch TFT LCD Resolution: 1080P high-definition Camera: Built-in 1200TVL pinhole camera Viewing Angle: 120° wide viewing angle Power Supply: External power supply (12V2A) included Waterproof Rating: IP65 Ringtones: 12 types of optional ringtones Installation Can be powered by an external power supply or extended to a DIN rail power supply or home power center. Usage Set the detection area of the doorbell camera. Automatic recording when a visitor presses the doorbell or triggers motion detection. Adjust volume levels and ringing duration for different times of the day.