Features: 1.Multifunction: Video doorbell supports monitoring, hands free 2 way talk, unlocking, wireless control, password unlocking, electronic lock control function, etc. 2.Adjustable Setting: This video intercom doorbell has a ringtone with adjustable volume, brightness and contrast, which can be adjusted according to needs and preferences. 3.LCD Display: This smart electronic doorbell features a TFT LCD display for your convenience, radiation free, low power consumption, and high definition. 4.Night Vision Infrared Camera: This video doorphone system includes an infrared night vision camera, high definition, you can monitor the outside of the door at night. 5.Touch Button: This doorbell has a touch button, ultra thin design, and is compatible with most electronic locks with delayed unlocking function. Specification: Item Type: Doorbell_x000D_ Material: ABS plastic_x000D_ Plug Type: EU Plug 100V-240V_x000D_ TFT LCD Resolution: 800 x 480_x000D_ Best Distance at Night: Approx. 0.2-1.0 Meters / 0.66-3.28ft_x000D_ Power Input Voltage: AC 100V-240V_x000D_ Output Voltage: DC15V 1.2A_x000D_ Camera Angle: 90 Degrees V7022B-L + Working Temperature Range: -30-60_x000D_ Dimensions: Approx. 210 x 134 x 23mm / 8.27 x 5.28 x 0.91in_x000D_ Glass Panel + Aluminum Installation Method: Surface Installation._x000D_ Cable: 4P and 5P Fixed Mode_x000D_ Wall Mounted Wiring Method: RV4 core wire connection distance 100M PackageList: 1 x Outdoor Unit 1 x Indoor Unit 1 x Hanging Board 1 x Power Cord 1 x Test Terminal Line 7 x Screw 7 x Plastic Screw 1 x Screw 1 x Wrench 2 x Line 1 x Manual