Review on 🚗 Kingneed GPS Speedometer Odometer HUD Digital Display 5.5 inch MPH/KMH: Stay Safe on the Road with Over Speeding Alarm for All Cars and Vehicles by David Encarnacion

Easy setup but that's the only positive. First I waited about 10 minutes for it to sync and work. then I drove 10 miles 20 minutes but on the way I stopped at a store, parked the car and it died. got out after a few minutes and walked back. He never synchronized the next 15 minutes of the drive. so useless. It was a cloudy day but I don't understand how this speedometer can be used. (My normal one broke). done at the store and restarted the car for the 20 minute drive home, it never synced the whole time until I (ironically) pulled into the driveway. don't buy that. Used cell phone is better.