CabCAM™ Systems are packaged to provide easy installation and setup. We offer wired systems that use a power video cable from the display to the camera(s). We also offer wireless systems. The analog wireless system uses radio frequencies for each camera which allows multiple monitors to view the same camera(s). The digital wireless system uses pairing to connect to the display, the same camera is used for multiple camera applications and is added to the display by the pairing method. The digital camera(s) can not be viewed by multiple monitors only the single monitor that it is paired to. Please read the "What's in the Box" section in the description to see each systems included items.