1,camera 2,Free domain name bounded 3,Two way audio 4,Support 10X optical zooming 5,Certified by Microsoft a Details: System ... -1/100,000s Video adjustmentBrightness, contrast, chroma, saturation.Minimum illumination0.5 Lux/F1.2S/N ratio>48DBWB,BLCAutozooming10X optical zoominggLensf=3 ... the same timeIP modeDynamic IP address, static IP address, PPPOEPictures: Waterproof PTZ Dome Camera