1、Night Vision: The camera of this doorbell has infrared night vision function, which can clearly display even in the dark to keep you safe. 2、Multiple Functions: This doorbell features electronic lock control, hands free intercom microphone and silent room intercom to enhance your user experience. 3、LCD Display: This doorbell is equipped with a 7in color TFT LCD radiation free display with low power consumption and high definition. 4、Adjustable Parameters: There are 25 kinds of doorbell sounds, and their volume, brightness and contrast can be adjusted, you can adjust them according to your needs. 5、Aluminum Alloy: Both the indoor unit and the outdoor unit are made of aluminum alloy, which has rainproof and anti oxidation properties. Item Type: Video Doorbell Intercom System Material: ABS, aluminum alloy Resolution: 480 x RGB x 234 Call Duration: 120s±10% Monitoring Duration: 60s±10% Communication Distance: About 200 meters Power Consumption: Static <0.5W, call <10W Camera Display Angle: 92° 1 x Camera 2 x Monitor 2 x Adapter 2 x 5 Pin Connecting Cable 1 x 2 Core Connecting Cable 4 x 4 Core Connecting Cable 1 x User Manual 16 x Screw 16 x Screw Expansion Tube