Lorex LW2002B Digital Portable Color LCD Wireless Surveillance System (Black) 450 ft. Open Space Range with interferace free, secure reception The ability to connect to any DVD Recorder, VCR or TV with included A/V cable Add up to 3 additional color cameras to this system Camera features 15 ft. Night Vision and built-in battery compartment for optional portability 2.4" Color LCD Monitor enables good quality listen in audio, audio level indicator and out of range safety warning