M22 Car Head up Display,GPS Speedometer,Display Speed and Time,digital speedometer car mph，KM/H and MPH,Suitable for all Vehicle Models

Thank you

Bought this headup display as friend had one , it’s very accurate speed wise , if positioned right doesn’t effect your view easily visible you don’t have to take your eyes off the road to check your speed highly recommend 👍

Somewhat of a gimmick as it’s in the way with wiring and only provides speed and direction tho one more gadget .. not useful for my car ( perhaps for older cars with faulty or erroneous Speedometers.

Not bright enough to see on windscreen and stays on constantly without the engine on causing my battery to drain.

The reflective film wasnt/isn't big enough imo but thus far it's working....how long for is well we will see

It works, it’s good value, it looks good on the window, and I don’t have to look down to see how fast I’m going anymore, brilliant!Comes with an opaque sticker to put on your windscreen if you want, but I’ve not used it, the reflection from the unit is clear enough, night and day.Worth a try, you’ll doubtless like it 👍🏻

Too much reflection.

Bearing in mind this product is meant to help you monitor your speed, it isn't reliable whatsoever. You would think that using GPS it could calculate your speed but you are forced to manually calibrate it - which requires trial and error. I found that every 10mph increase caused a wider difference between car and device speed, after much fine tuning. The instructions were unhelpful and the seller took a week to reply. Try another product