... Detailed Product Description Brife introduction 4--CH Vehicle DVR, support network,GPS and Hard Disk (500GB---1000GB), 4 channels record at the same ... choice for a car,bus,taxi,etc. Main function: 1.4-CH record at the same time 2.support Hard Disk from ... Special Features Motion detection & Record all the time Video Connector 4 inputs and outputs BNC or RCA compatible with the cameras supplied ...