... line, outdoor waterproof IP66, audio monitor, 27X optical zoom, IR 100 meters, head horizontal rotation 355 °, vertical 90 °, speed ... .0 or higher version,firefox,chromeSuper Client1,4,9,16,25,36, 64,81-channel , no user limited , centralized ... intensity,contrast ratio,saturation level are adjustable.NightvisionEffects4 IR LEDs array ,IR distance : 100mAudioEncode formatsG.711/G.726Inputone channel ...