Features  Outdoor antenna  Wide rang of power supply: DC10V-32V  4 channels working simultaneously. Auto recognition of video signal.  Manual channel-switching mode or auto channel-switching mode available. Modes are shown by LED with diffenrent colors  Nixie tube indicates channel,volume or channel switch time by digits  2 audio and 2 video outputs to TV, monitor, VCR , etc  4 diffenrent groups of frequency ranges available  Switch time between channels can be set from 1 to 60 sec  Remote controller  Barrier-free transmission distance: 200m  Remote controller  Infrared LED lights: 30