This high quality CCTV security system comes with 4 high resolution box cctv cameras that may be used indoors or outdoors.  The system is equipped with all camera cables and connectors needed for installation. The DVR has many advanced features including motion detection and remote internet viewing.  For video storage, the DVR comes with a 500gb hard drive. The security cameras are our Sony CCD High Resolution Professional Cameras with 470 lines of resolution, and we furnish each camera with a 3.5-8mm varifocal lens. This lens allows the installer to adjust the lens to the proper angle and view for each camera.  This security camera system is a great choice for business or home use.