①1. Restart the power “Master switch”, press and hold the “SPEED” and “VOLUME” keys at the same time for 3 seconds to enter the user settings,

②Press “+” to enter the system settings,

③Press “remote” six times to enter radar setting,

④Press “+” or “-” to set the radar distance.

After completing the settings, press and hold the speed and volume keys at the same time to save the settings.