Heads Up Display for Cars, Car HUD H4, GPS Speedometer, First Colorful, Large Font Digital Speedometer GPS with Speed, Compass, Automatic Sensing, Speeding Alarm, Suitable for All Cars.

I installed it on my dashboard and it doesn't need the reflector included in the kit because it gave a bright enough display on my windshield to where i didn't need it day or night. Cool upgrade to where I can keep my eyes on the road.

The price point, physical design, display, and reaction time are all great. It’s fatal issue is it reports speed about 10% higher than actual, which is annoying when driving on the highway.

When it works the speed is about 4 mph higher than my OEM speedometer. So I have to constantly doing math on my head when I look at this HUD to calculatemy real speed. Had to drive on Highway 1 CA narrow and winding road on an RV and need to follow the yellow speed indicator for safety constantly.The power connection somehow is not firm so the unit goes on and off. It is very annoying. I have to unplug and plug it back in to make it work. I guess got what I pay for. Return windows had closed so I can't Return it. I am looking at better one.

Nice and worrks.

Easy to set up. In bright daylight I have noticed a little bit of washout. As others have said the speed seems a little off, but my speedometer was not working at all, so at least this gets me close. Road signs that show your speed has me about 5mph slower than the speedometer.

Speed is off. At 25 it shows 28 and at 45 it says 50. How ever other than that it's a great unit as in it's ready to use it looks good and you can see it Chrystal clear at night and it's visible during the day without using the little window reflective tape. Just the window itself

I've been using it for 3 weeks. It's really accurate and clean. I really like it. I recommend it to everyone.

Would not even turn on