7'' Security Surveillance CCTV Monitor Peaking Filter,False Colors,Exposure & Histogram functions I/O Signal: HDMI, YPbPr, AV Key Buttons Functions:F1-F4: 4 user-definable buttonsDefault function:F1: Peaking Filter --> Be used to aid the camera operator in obtain the sharpest possible pictureF2: False Colors --> Be used to aid in the setting of camera exposure, which enables proper exposure to be ...