Rexing V3 Basic Quick Start Manual page 16

GPS Logger (Needs to be purchased separately)
When connected to the camera, it will record the speed and
location of your vehicle as you drive.
You can then access these information while playing back your
recordings using the GPS Video player (For windows and Mac,
available at rexingusa.com).
The dash cam will automatically search for the GPS signal once
it's connected to the power source. Press the MENU button
once and go to System Settings. Toggle the GPS setting, and
select your favorite speed unit.
After a GPS signal is found, the screen icon will turn from not
connected to active - as per the below icons.
16
GPS Signal - Searching
GPS Signal - Active
GPS Signal - Not Connected