Features: 1.ALUMINUM PANEL: Video doorbell is made of aluminum alloy panel, which is stylish and luxurious, with rainproof and anti oxidation properties. 2.7 INCH COLOR TFT LCD: Video door phone doorbell with 7 inch color TFT LCD, no radiation, low power consumption, high definition. 3.NIGHT VISION FUNCTION: Night vision video doorbell is an infrared camera with night vision function with IR CUT. 4.ELECTRONIC LOCK CONTROL: Video intercom monitor has electronic lock control function, hands free intercom, silent indoor intercom function. 5.25 DOORBELL RINGING: Video intercom system monitors the exterior of the door. 25 types of doorbell ringing. Adjustable volume, brightness and contrast. specification:Item Type: Video Door Phone Doorbell Material: ABS, Aluminum Alloy Resolution: 480xRGBx234 Voltage: 100-240V Call Duration: 120s10% Monitoring Duration: 60s10% Maximum Communication Distance: Approx. 200m/656.2ft Power Consumption: Static