Feature:
.Surface-mounted, 7 inch color TFT screen with sensor buttons
.Support 2 door stations
.Support visitor-calls transferable to telephone
.Support door released by telephone remotely
.Support image capture function with 8/64 images memory
.Support inserting SD card for saving captured images to computer
.Support 4-channel CCTV and 2 door stations security surveillance
.Connect TV and DVD or MP3 player to watch TV and listen to music from indoor monitor.
.Color / contrast / brightness / volume adjustable
.Internet remote viewing, recording, and unlock
.Do Not Disturb function
.4 wires twisted pair cables, simple star cable installation