Name:NVR Secure System Vem:NTSC PAL Vdard:PPAL(625 ps);NTSC (525 ps) Resolution:1200 TV olor System Monitor quality Monitor:D1;VGA,HDMI (suppor, 1024*768,800*600) Supported Operating Systems:Windows 98,Windows XP,Windows Vista,Window Material:Metal Color:Black Usage:Secuity Equipment Product name:Cheap 4ch hi-tech 720P realtime playback H.264 1080P CCTV DVR