Hikvision Two-Wire Video Intercom system includes both indoor and outdoor video intercom stations powered by a distributor that only needs two wires – one for power and one for audio/video transmission. This setup makes things simple when you’re upgrading an old intercom system. With fewer wires required, you can simply reuse the existing ones from the previous hardware. Installation becomes easy, fast, and cost-effective. Learn more 👉 https://www.hikvision.com/europe/products/Video-Intercom-Pr