MX video door phone system allows you to talk and even see your visitors before admitting them. MX video door phone system gives you choice of who is allowed in and who is not. A system will consists of a doorbell camera outside the entrance door with buttons when installed in a blocks of flats. Video door phone systems can range from a video and 2 way audio entry system to sophisticated digital systems covering multiple flats and entrance with video This product we have to fix inside the home this is wall mounted phone so it can fix besides the Door When visitor Presses the Call button from the Outdoor Camera, this video door phone will rings, also this capture the picture of the visitor. A 2 way Audio conversation can take place and in addition you can view the video from the Outdoor cameras. By pressing release button on the Door phone you can release the electro-magnetic lock on the entrance door.