Homefong 7 Inch Wired Video Intercom System For Home Doorbell Panel Multiple Monitor Outdoor Camera Video Door Phone Unlock Talk

Indoor Monitor Specification Resolution;800*480 Material:ABS 7 Inch color LCD video intercom monitor Unlock electronic lock Monitoring Dual Way intercom between monitor and doorbell low power consumption, no radiation Outdoor Doorbell Day Night Vision Working temperature:-20-+55 degree Built-in microphone supports bi-directional communication between indoor monitor intercom and outdoor doorbell.ultra-clear sound quality without any noise. 2 Unlock Button on the monitor The monitor could connect with 2 locks separately, 1 lock could connected with doorbell,the other lock could connected with monitor directly Multiple System Supported Support up to 4 monitors 1 doorbell Connection