... 16,25,36 multiple video display optional in one screen, support record, alarm, remote playback ... 25fpsVideo AdjustmentBrightness, Contrast, Chroma, Saturation adjustable, Auto White Balance, Auto Backlight CompensationZooming4 Level autozoomLensStandard : 8-20mm ( ... IR 50m Audio processorOne-way audio (External MIC )Audio GainAGCNetworkConnectionRJ-45 , 10/100Mb auto-adapted EthernetProtocolSupport TCP/ ...