Product Manual

upside down(Vertical flip)
i.Function:
Single/Split Screen: The default is CAM1. Press the + key once to
switch to CAM2, and press the + key twice switch to the split screen.
Guide Lines ON/OFF: The default guide line is on. Press the - key
once to turn off.
ii.Press the menu key once, below picture appears. The brightness
can be adjusted by press the + or - key