4CH DVR D1 Net transmitting: H.264 compressionly for IE 250GB HDD affords continuous recording for 10 days DVRReal time recording and compressing video dataNTSC / PAL optionalMultiple record mode: continuous, motion detection, sensor triggered, time scheduleNet transmitting: H.264 compressionly for IE,support TCP/IP protocol, static IP/DHCP/PPPoE, for four usersMotion alarm and video loss ...