... compression, no frame lost 4CIF preview resolution Support Windows2000/XPSetable I.B.P frame sequenceSetable video quality and bitrate Setable brightness , contrast ... and NTSCVideo Input16 Channels BNC (1.0Vp-p, 75ohm)Audio Input16 Ch BNC(Vp-p=2.0V,SNR > 83DB,Linear Electrical Level ...