Car HUD Head-up Display Beidou PGS Vehicle Speed Display KM/MPH Non-destructive installationPlug and playConnect the USB cable to the USB port or the cigarettelighter car charger port High-definition LEDStill clearly visible day and night GPS+Beidou Dual Chipsets
Using 10 Hz high refresh rate GPS + Beidou dual-mode chip
The refresh rate is 10 frames per second, the speed of the vehicle is fast, and there is no delay Accurate speed display
Add the speed calibration function, which can be adjusted to be consistent with the display of the car dashboard
(GPS speed is based on the satellite signal! lt is very accurate in nature,
no need to adjust normally) Smart GPs Speedometer
Modern Design Big Fonts Plug & Play only has the function of displaying the speed and does not have the voice broadcast of the electronic dog.