2 alarm functions2 big alarm functions, Overspeed alarm can be set, continuous driving for 8 hours fatigue driving reminder. you can also set the value of overspeed alarm according to your own needs.
Product Accessories and Installation G13 HUD, Non-slip mat, Rotary Suction Cup Holder, ManualNon-destructive installation, plug and play. Connect the USB cable to the USB port or cigarette lighter car charger port and you can use it.