Amocam Video Intercom Doorbell System 7" Monitor Wired Door Bell 1 Night Vision Camera 1 Screen Video Door Phone Kits support Monitoring, Unlock, Dual-way for Villa Home Security Systems The video intercom doorbell system has 1-doorbell camera and 1-LCD press key panel monitor When someone press the button of the doorbell,the monitor will ring and show the video,you can monitoring and unlock,dual-way intercom,Mute door intercom. 16 different kinds of door bells chimes.Volume, brightness and contrast are adjustable. Fashion and nice design,which can also be used a decoration of your house for home improvement. 700TVL CMOS night vision high resolution door monitor camera,wired connection stability distance maximum 50 meters for home security. Simple 4 or 5-wire connection,easy to install Can be used in apartments, villas, hotels, offices, public buildings.