1、7 Inch Color Digital LCD Screen: Wired video doorbell system's indoor machine adopts 7 inch color digital LCD screen, no radiation and low power consumption, real high definition widescreen display. 2、Multifunction: Video doorbell intercom system has handsfree intercom function, electric unlocking function, outdoor monitoring function, indoor intercom function, no disturb function. 3、Adjustable Brightness, Chroma and Volume: The image brightness, chroma and volume of this wired video doorbell system's indoor unit can be adjusted at will, you can able to see whoever comes to your door. 4、Exquisite Appearance: Professional video doorbell intercom system's indoor unit is ultra thin design, acrylic panel, electroplated keys, beautiful and luxurious. 5、Aluminum Alloy Shell, Infrared Night Vision: Video door intercom system kit outdoor machine all aluminum alloy shell exquisite and lasting, with night vision infrared function, with ID card unlocking, waterproof. Item Type: Wired Video Doorbell System Material: ABS, Aluminium Alloy, Acrylic Weight: Approx. 2275g/80.2oz Indoor Machine: Display Resolution: 800xRGBx480 Language: Default English and Chinese Ringtone: 25 Chord Tone Power Consumption Standby: <1W, Working <6W Session Delay: 120s ± 10% Display Delay: 40s ± 10% Operating Temperature: -20℃~+60℃ Relative Humidity: 10%~90% (RH) Outdoor Machine: Angle: 90°, 110° Infrared Illumination Distance: Approx. 4m/13.1ft Resolution: 1000TVL 1080p User Card Can Be Set Number: 1000 Users Indoor Machine Size: Width: Approx. 225mm/8.86in Height: Approx. 137mm/5.39in Diameter: Approx. 20mm/0.79in Outdoor Machine Size: Width: Approx. 95mm/3.74in Height: Approx. 185mm/7.28in Diameter: Approx. 50mm/1.97in 2 x Indoor Machine 1 x Outdoor Machine 2 x Mounting Plate 2 x 4P Connecting Line 6 x Connecting Line 2 x Power Plug 2 x Management Card 5 x User Card 1 x User Manual 9 x Screws 9 x Expansion Rubber Plug