1)Applies to the villa or single room, pinhole camera

2)Supports door bell, intercom, video, monitoring and the door releasing

3)Outdoor camera with infrared auxiliary

4)Supports 4 indoor phone parallel connection and inter-call

5)7"TFT-LCD with 2G SDcard picture memory,Indoor phone support several chord bell selectable

6)Mate with remote controller

7)Connection layout: 4wires