Wooku 8 Inch Video Door Phone Doorbell Intercom Home Security Monitor with Recording Function 1 Camera 1 Monitor It is a door phone which can show you what is going on outside doors on a clearly 8" full color screen of which the brightness can be adjusted. It can function as a monitor. Press the button of Response / Monitoring, the screen will show you the picture outside doors, which makes you kown the outside world staying in the house. The easy installation also is one of its advantages, which most customers care about. The mounted design of this item makes it very easy to be installed. As for the outdoor units, three kinds of components (all included in one package) are prepared for you to install the outdoor unit in different.