1、PROFESSIONAL SECURITY CAMERA: It features a high definition CMOS image sensor for exceptional image clarity and automatic exposure and white balance control. 2、BUILT IN POWER ADAPTER: Say goodbye to bulky external adapters with this innovative design. The built in power adapter saves space and enhances the aesthetic appeal. 3、ONE CLICK UNLOCKING: With the one click unlocking feature, you can effortlessly control electric locks, electromagnetic locks, and electric plug locks. 4、VERSATILE APPLICATIONS: This video intercom system is not only suitable for home use but also ideal for offices, hotels, apartments, and factory settings. 5、SAFE: The system allows for quick and safe communicating with visitors through a simple button press. This ensures that you can interact with guests or delivery personnel conveniently while preventing robbers and thieves. Item Type: Video Intercom System Material: ABS Camera (Outdoor): Camera Sensor: 1/4 Inch HD CMOS Light Source: 6 Infrared Lights Resolution: 800 x 600 Display (Indoor): Resolution: 800 x 480 Wiring Method: 4 Wires 2 x Indoor Screen 1 x Outdoor Camera 2 x Iron Plate 5 x Connecting Cable 12 x Expansion Screw 13 x Metal Screw 1 x Instruction Manual 2 x Plug 1 x Testing Wire