... standardAMRcode rate12.2KbpsInputOne channel,3.5mm JACK LINE INBuilt-in high sensitivity MIC,distance 5mOutput1 channel,3.5mm JACK SPEAK OUTVideofile formatAVI file ... are monitoring or upgrading firmware, restoring to the factory settings,should prohibit the interruption of power supply. ... maintenance, please hand in the warranty card together with the products to the manufacture or local distributor.d ...