... main prof ile level 3/Motion-JPEG Dual-stream 2.WIFI 802.11 b/g/n 3.1/3inch ... ,36, 64,81-channel , no user limited, centralized monitor, remote record and playback , Skype message alarm, skype telephone alarmSystemOperation systemEmbedded ... intensity,contrast ratio,saturation level are adjustable.NightvisionEffects30 Φ5 LEDs IR Distance:20mAudioEncode formatsG.711/G.726Inputone channel linear input / ...