1、9in large screen, automatic photosensitive, 24-hour intelligent monitoring. 2、Support remote unlocking, when a visitor visits, the phone will prompt, APP can unlock anytime and anywhere. 3、One key to unlock, after confirming the visitor, press directly to unlock, convenient and fast. 4、When a stranger comes, you can turn on the camera video function, the key information should not be missed. 5、Can be connected with electric control lock, electric mortise lock and magnetic lock, only needs to be lightly pressed to open the lock. (Note: It must be used with access control power supply when connecting the electric plug lock and magnetic lock) 6、With rainproof cover, IP65 water resistant, sturdy, wall-mounted installation is more convenient, without fear of wind and rain. 7、Equipped with infrared lamp, high definition, can be clearly seen even at night. 8、The indoor unit is built‑in 25 chord ringtones, customers can freely choose their favorite ringtones. 9、Real-time intercom, convenient for you to communicate with visitors. 10、Can insert memory card (not included), maximum support 32G. Item Type: Video Door Phone Color: As picture shown Indoor Unit: Display: TFL-LCD 9-inch Digital High-definition LCD Display Installation Method: Wall-mounted Resolution: 800x480 Material: Metal Shell + Acrylic Panel Power Consumption: Standby ≤1w, Working ≤10w Ringtones: 25 Chord Music Outdoor Unit: Camera: CMOS Color Digital HD Camera, Backlight Compensation Operating Temperature Range: -30-+60℃ Power Consumption: Standby ≤1W, Working ≤ 2W Host Material: ABS Engineering Plastics Power Supply: Indoor Extension Set Power Supply Installation Method: Surface Mounting Wiring Method: RVV4 Core Wire Connection LED:4 LED Infrared Fill Lights Best Distance for Night: Approx. 0.2-1.2 Meters/0.7-3.9ft 1 x Outdoor Unit 1 x Indoor Unit 1 x Power Adapter 1 x Indoor Unit Hanging Board 1 x 4m/13.1ft Connecting Cable 1 x Mounting Screw Package 1 x Hex Screwdriver 1 x Screw 1 x 5 Core Connection Cable 1 x 4 Core Connection Cable 1 x 2 Core Connection Cable 1 x Instruction