... ,36, 64-channel , no user limited , centralized monitorSuperioritySupport multi-channel monitor via cellphone or computer,certified by Microsoft activeX, support most ... *240)Image adjustmentBrightness, contrast,saturation.WB, BLCAutoLensStandard: 3. 6mmNightvision10Φ5 LED lights IR distance: 10mCompression formatADPCMInputBuilt-in MircophoneOutputone channel linear outputAudio ...