Review on 🚗 Universal Wireless Car HUD Head Up Display: Speedometer MPH, Solar/Battery/USB Charged, Time Clock, Speed Alarm, Fatigue Driving Alert, Temperature & Altitude by Pat Nard

Get 2 stars (now) because MPH setting always returns to km/h after USB charging h returns. In winter, take the charger with you with a few days delay. But resetting the MPH setting every time after a USB charge would be totally unacceptable. I like this device, simple and accurate, and less light reflection on the windshield when driving at night. I hope it's just a bad device so I decided to give it a try to request a replacement. I will update the conclusion shortly after the replacement device arrives.