Detailed Product Description :4--CH Vehicle DVR, support network,GPS and Hard Disk ... at the same Detailed Product Description Brife introduction 4--CH Vehicle DVR, support network,GPS and Hard Disk ( ... car,bus,taxi,etc. Main function: 1.4-CH record at the same time 2.support Hard Disk ... -40ºC Operating Humidity 85% Max Power Supply 12V--24V Compatible With Windows XP& windows Vista Warranty 1 year ...