SPECO 4 Channel Triplex Digital Video Recorder w/Network/DDNS Video Server Free DDNS server for use with dynamic IP addresses MPEG-4 high quality compression, 5~10 times smaller than MJPEG Triplex operation enabling simultaneously view live or playback while continuing to record & network transfer Remote monitoring, recording, playback, change system settings and dome camera control via Ethernet and/or Internet Jog shuttle for easy operation