Usage:i Alarm DVR System Vt:8CH BNC Play mode:Normal Play Fast Forward Fast Rewind Frame by Frame Network:TCP IP Gprs And Gprs PSTN for options Vut:1CH VGA+1CH HDMI+1CH BNC Channel Mode:4CH D1 + 4CH 1080p 8CH D1 8CH 1080p Alarm Zones:32 ed+64 Bus Zones Vression:Main Profile H.264 HDD:2 SATA HDD Type:DVR Hybrrtificate:CE FCC Rohs ISO9001