... ),480(NTSC) VBR/CBR Surveillance system Embeded hardware video encoder H.264 AttributePE-48Video4-channel video encoding format:MPEG-2 MP@HL, H.264 ... Profile and Level 4(HiP@L4)video standard:PAL/NTSCvideo resolution:720X576,720X480,352X288,352X240Audioaudio mode of 4-channel: stereo ,left channel ,right channelaudio format ...