With h.264 compression, smaller stream, higher quality, longer recording time. 8ch960h support 4ch playback, 8ch d1 support 8ch playback, 16ch d1 support 1ch video playback, 16 half d1 support 16ch playback. With unique front panel and time screen, 8ch support 8*960h video recording, 16ch support 16 d1 @25fps Support symbian s60v3/v5, windows mobile, iphone, android, blackberry mobile view. Support 1sata hdd ( 3tb), 2 usb(2.0) interface for backup, burning, upgrading operation Stronger network service, support ie browse and cms software Support chinese, russian, english, italian, portuguese, spanish, french, german ..... . 30 language Build-in 3322.Org, dyndns.Net, oray.Net and myq-see.Com free ddns dynamic domain name With hdmi, support 1080p the high-definition (1920 * 1080p) With hvr, nvr function, support 2*1080p/2*720p/16*d1 ip camera Support p2p function 370(width)x315(deep)x55(hight)mm 4kg(not including hdd)