... network dvr,digital video recorder RS 485 Control,RJ45,with VGA, remote control 3G cellphone view,H.264 two way audio DVRnetwork dvr,digital video ... recorder16CH video and 3CH Audio 1CH Two way Audio ... , Alarm, Manual RecordingStatus IndicatorPower, Network, HDD1, HDD2Event ModeAlarm Trigger, Motion Trigger, Video LossRecoridng Duration: 1~60 sec.System ...