Dahua’s 2-Wire Hybrid Video Intercom System – Easy Deployment, Infinite Connection Dahua’s 2-Wire Hybrid Video Intercom System upholds the extensibility, accessibility, convenience, and high-definition video quality of the EACH Series, making it a perfect solution for new installations or upgrading an existing video intercom system in houses and apartments. By utilizing existing wiring, this system not only offers users a superior intercom experience but also greatly simplifies the installation, management, and maintenance of the system. It supports remote intercoms and significantly enhances the accessibility of video intercoms in users lives.