GPS Speedometer Odometer HUD Digital Display 5.5 inch MPH/KMH with Over Speeding Alarm Product Feature 1.UNIVERSAL: This GPS speedometer HUD display is compatible with all vehicles, cars, trucks. This odometer calculates real-time speed via GPS. Head-up display the speed, Display MPH or KM/h, Driving Time, Altitude, Distance Calculate and Display, Automatically Identify Time Zone, Accureate GPS Local Time Display, let you know the real-time key information for your trip. First time get GPS singal within 1-2 minutes in good weather and outdoor. 2. 5.5 inch EXTEND DISPLAY: Extend Display make more easily and be comfortable to read. Speed in KM/H or MPH. Long press the Enter Button to choose speed unit you need. It can be charged 5V output voltage USB cable. 3.Over Speed Alarm: Press "Enter" button once, show 001. Adjust the alarm speed rate with the toggle switch. Once over speed, it will give a warning alarm. If no need the over speed warning, trun off alarm. 4.Rotatable Holder: You can adjust it to your desired angle with the rotatable holder. Strong sticker under the holder can fix the holder on the car console steadily. So it is easy to use and make your driving safely. Product Specifications: 1. GPS location time: 1 to 5 minutes outdoor (Location time is based on GPS signal well, please keep speedometer in good GPS signal condition). 2. Speed deviation: Since the speed data comes from the GPS satellite, slight deviation is unavoidable. 3. Input voltage: DC 5V Input current: DC 50-120mA. Power bank for power supply is supported. 4. Working temperature: -30 to 70C degree/-22 to 158F degree. 5. Driving data deviation is around 2 6. All driving data will be cleared when power off except the total mileage. 7. The GPS Speedometer did not completely waterproof, do not used for ATV directly. You Get: 1 x GPS HUD speedometer 1 x USB cable 1 x Plastic holder 1 x User Manual Before you place an order, please provide me with English information to facilitate our delivery and logistics