... 4: Welcome OEM and ODM Hot 3.5 or 4 inch TFT video door phone :Model:SMTV2C-L Model:SMTV2C- ... 6 LED lights,nightvision.**handset indoor monitor,3.5 inch or 4 inch TFT,clear image.**intercommunication,monitoring the outdoor,unlock..** ... four monitors.(different choice)**four wires,DIY installation**Including in one kit:One indoor monitor, one outdoor camera, user manual,cables.**Packing detail: Color ...