New Features:

1) 7 Colors Backlight Optional       

Qickly press the SET button (<1second) to change the backlights as below:

Red(Defaut)→Green→Blue→White→Yellow→Yellow Green→Orange Purple→Automatic mode

Automatic mode: The color will cyclically flash as above for every 2 seconds 

2) Odometer Programmable

If the device is well connected with GPS signal,long press the button(≥5 seconds) to enter into the Odometer Programmable Mode(6 Digits Can be Reset).we name it X1 X2 X3 X4 X5 X6      
If you see digit X1 flashing,it means that you can set it from 0 to 9 by long pressing the button.
If you want to modify digit X2 X3 or X4,Just take a quick press on the button to move to the digit that you want to work with.

If no movement is done within 5 seconds, it will switch out of the Programmable mode and save all the changes if applicable.

3) Odometer Reset to Zero                                                                       

Press the button(≥10 seconds) to set the total mileage to zero 

4) Odometer Accumulation 

Accumulated mileage, it never returns zero when power off