7\'\' color apartment video home intercom system with broadcast

Basic function
1. Intercom function: See the image of the visitors and talk with them through the Video Door Answering Systems;
2. Door monitoring function: You can see what going on in front of the doorbell or CCTV camera on the monitor at any time through the Door monitoring system;
3. Lock control: Unlock the door through the intercom door security system.
4. Optional volume adjustment: According to residential needs, the chime volume and talking volume can be adjusted ; Appropriate color , contrast and brightness may be adjusted to get better displaying;
5. Don\'t disturb choice: the best video door phone can set No-Disturb state if you don\'t want to be disturbed by visual doorbell ring.

Expand function
1. The 4 wire villa intercom system supports visitor-call transfer between monitors and make internal call among intercoms;
2. Image format convert 16:9 to 4:3: Indoor monitor can display the image from video camera doorbell, and the display ratio can be changed between 16:9 and 4:3;