Review on 🚗 Enhance Road Safety with 5.5" Universal F4 Car HUD Display- Speedometer + Speed Alarm for Cars & Navigation by Kevin Parker

First pluses: 1) Location and colors are easy to read. the writing is very small 2) The speedometer tends to get stuck at a random speed and won't go off until you turn off the engine, wait a few minutes and turn the engine back on. This happened several times. When this will happen cannot be predicted. I think it's a software bug. Your engineers should take a look. Better quality control is also needed. As you can see in the picture the speed is 49 mph but the car doesn't move at all. At some point during the ride I reached that speed and he decided to stay there. I give it 3 stars because when it works, it works great. I would give 5 stars if they could solve the speedometer issue.