1、DOORBELL CAMERA WITH DUAL SCREEN UNITS: This 4 wire video intercom system includes two 7 inch color LCD indoor screens, featuring a sleek design and touch buttons that provide a clear view of visitors at your doorstep. The outdoor doorbell is equipped with a high definition camera offering a 120 degree wide angle view, 1/4 HD CMOS design. 2、TWO WAY INTERCOM: With the indoor intercom screen, you can effortlessly communicate with visitors at your door when they press the call button on the outdoor unit, allows you to see and talk to anyone approaching your home, increasing both convenience and safety. 3、NIGHT VISION CAPABILITY: Featuring 6 built in IR LED lights, the outdoor camera ensures clear visibility both day and night. Its infrared night vision capability ensures continuous viewing, allowing you to safely and easily open the door from inside your home. 4、MULTIFUNCTIONAL DESIGN: The doorbell intercom system comes with multiple ringtone options, adjustable volume, and settings for brightness and contrast to enhance user experience. It also supports IC card unlocking (not included), indoor unit unlocking, electric lock control, handsfree intercom, and auto shutdown function for added convenience. 5、VERSATILE USAGE: This video doorbell system is adaptable for a wide range of environments, including residential homes, commercial offices, apartment complexes, and government institutions. Its multifunctional design and advanced features make it an ideal solution for improving security and access control. Item Type: Wired Video Intercom System Material: ABS Camera: Lens: 1/4 High Definition CMOS Resolution: 800 lines Illumination: 0.02 LX Light Source: 6 IR LED Power Supply: Provided by host Display: Screen: 7 inches Resolution: 800 x 480 Voltage: DC15V 2A Video Input: 1Vp-p 75Ω Ringtone: 16 x 4 Chord Display Time: Talk 60s and View 30s Power Consumption: Standby 0.2W, Working 8W Connection Method: 4 wires Installation: Wall mounted 1 * Outdoor Unit 2 * Indoor Units 13 * Screws 12 * Screws Expansion Tubes6 * Connecting Cables 2 * Power Adapters 2 * Mounting Boards 1 * User Manual