Docooler&reg; 7 Inch Video Door Phone Doorbell Intercom Kit 1-camera 2-monitor Night Vision Two indoor unit with one outdoor units.Aluminum alloy panel of indoor unit, fashionable and luxury.Little rain and oxidation-proof for the durable aluminum alloy outdoor unit. 7" color TFT LCD without radiation, low power consumption and high definition. IR Camera with Night Vision.Electric lock-control function.Handfree intercom. Mute indoor intercom function.Monitoring the outside of the door.16 kinds of door bell rings Volume, brightness and contrast adjustable.Easy installation by yourself with adapter and cable we provide in this kit.