CCTV DVR Model: PST-DVR104V H.264 Can view by mobile Network(TCP/IP) CCTV DVR, dvr video ... channel display. Audio4CH Recording ModesManual, Continue, alarm, motion detection Operating SystemEmbeded Linux Operating MethodUSB mouse ... , network Event ModesAlarm trigger, video detection trigger Alarm Input4CH alarm inputs, 1 repeater output, COM & N. ... C 4 CH H.264 Surveillance Security CCTV DVR System