Features
1. Safety: Automatically display speed information to shorten driver's eyesight off road.

2. Easy Installation: Simply plug the power cable into the power outlet in your vehicle. The unit will setup automatically when power is applied.

3. Speed Warning: Provides warning signal and alarm when vehicle travels over speed limit. Signal can be adjusted according to speed limit.
 

Function
1. Projects speed information on the windshield screen at driver’s eye level and helps reduce the distraction incurred by attending to the speedometer, hence shortens the time needed for driver's sight off the road.

2. Built-in Wireless transmission device (varies by model) serves as receiver for satellite navigation systems in PDA and Laptop computer.