Feature:1. DOORBELL CAMERA WITH 2 SCREEN UNITS: The 4 wire video intercom system with 2pcs 7in color LCD indoor screen, slim design and touch buttons, offers a clear view of visitors at your doorstep. The outdoor doorbell features a high definition camera with a 120 degree wide angle view, 1 or 4 HD CMCS, and automatic night vision fill light for enhanced security.2. 2 WAY TALK: With the indoor intercom screen, you can easily talk with visitors when someone presses the call button on the outdoor unit. This real time talk feature allows you to see and speak to anyone approaching your home, enhancing convenience and safety.3. NIGHT VISION: Equipped with 6 built in IR LED lights, the outdoor camera ensures clear visibility day and night. The infrared night vision capability provides continuous surveillance, The video intercom door phone kit allows you to open the door safely and easily from your home.4. MULTI FUNCTIONAL: The doorbell intercom system offers multiple doorbell ringtone options, adjustable volume, brightness, and contrast settings for better user experience. Additionally, it supports IC card (not included) unlocking, indoor unit unlocking, and electric lock control, along with handsfree intercom and auto shutdown functions for added convenience.5. VERSATILE APPLICATION: This video doorbell system is versatile and can be used in a variety of settings, including residential homes, commercial offices, apartment buildings, and government institutions. Its multifunctional design and advanced features make it an ideal solution for enhancing security and access control.Specification:Item Type: Wired Video Intercom SystemMaterial: ABSCamera Parameters:Lens: 1 or 4 HD CMOSResolution: 800 lineIllumination: 0.02 LXLight Source: 6 IR LEDPower Supply: from the displayDisplay Parameters:Screen: 7 inchesResolution: 800 x 480Voltage: DC15V 2AVideo Input: 1Vp-p 75 OhmRingtone: 16 x 4 melodiesDisplay Time: Intercom 60s and Display 30sPower Consumption: Standby 0.2W, Working 8WConnection Method: 4 wireInstallation: Wall mounted.Package List:1 x Outdoor Unit2 x Indoor Units13 x Screws12 x Wall Anchors6 x Connecting Cables2 x Power Adapters1 x User Manual