1.H.264 Main Profile 2.4channel D1 stand-alone DVR recorder 3.PTZ control 4.Dual stream 5.VGA output Resolution 1280*102 Features ... Real-time recording and 4 channels D1 playback at the same timeSupport VGA output resolution: 1280*1024Supply BUILT-IN DDNS domain name ... control.Chinese, English, Thai, Russian, French, Spanish,etc.Specifications:VideoInputBNC×4,(1.0Vp-p,75Ω)CVBS OutputBNC×1,(1.0Vp-p ...