... sensor.6 LED lights,nightvision.**handfree indoor monitor,7 inch TFT,clear image.**intercommunication,monitoring the outdoor,unlock..**Intercommunication is ... four wires,DIY installation**Including in one kit:One indoor monitor, one outdoor camera, power adapter, user manual,cables.** ... Color box,5sets in one carton.**surface mounting for monitor and camera **monitor dimension:230(L)×180(W)×18(H)mm ** ...