With 7 inch Wired Video Door Phone System, Visitor Can Use Call Panel Calls, Then You Use Indoor Monitor Unlocking, MonitoringCompatible with DC 12V Electric Lock (not included). Support Visual IntercomIt Supports Communication Between Indoor Monitor And Outdoor Camera, But Also Supports Communication Between Monitor And Monitor. Rainproof DesignCan Be Installed Outdoors, Do Not Worry About Being Drenched By Rain. It Also Can Work Well Even In Bad Weather. IR Night ViewIR LED Offset Lighting Can Obtain Better Evening Viewing, It Helps You Identify The Visitors Even In The Dark Night. Features: *Consist of1*7inch indoor monitor + 2*infrared outdoor camera. *Clear image display with 800*480 LCD screen and 700TVL color CMOS. *Support visual intercom, unlock, IR night view and rainproof. *Intercom/ring volume, brightness and contrast adjustable. *Compatible with DC 12V electric lock (not included). Monitor Specifications: Display: 7inch TFT LCD screen Resolution: 800*480(RGB) Ring Number: 16pcs Connection Cable Length: 5M Material: ABS plastic Monitor Size: 24.1*15.2*2.6cm / 9.49*5.98*1.02in Monitor Weight: 418g / 14.77oz Camera Specifications: Image Sensor: 0.3MP CMOS Resolution: 700TVL Light Sensor: Built-in IR Led: 4pcs, auto on/off Mini Illumination: 0 lux (IR on) Rainproof: Support Material: Aluminum alloy Shell Material: ABS plastic Camera Size: 12.7*5.3*4.6cm / 5*2.09*1.81in Camera Weight: 188g / 6.64oz Package List: 2* Outdoor Camera 1* Indoor Monitor 1* Power Supply Some Accessories User Manual