ITEM NAME:Car Head Up Display II HUD Projector Speedometer MPH KM/h Speed Warning WY BX Features: 1.Plug and play: Auto-matches automobile models of A1000(European On-Board Diagnostics). 2.For safer driving: Omits your lowering head to the dashboard, just concentrate on the road ahead and you will notice your driving data. 3.Over-speeding alarm: Alerts you if you exceed the speed limit by setting over-speed buzzing alarm. 4.Multi-color and high definition display: More abundant frames and easy to read. 5.Adopted nano-technology: Eliminates unwanted reflection to present more definition frames. 6.Display rich contents: Speed, engine rpm, water temperature, voltage, mileage, shift reminding, driver fatigue reminding, low voltage alarm, high water temperature alarm, over-speeding alarm, engine fault alarm, fault code elimination, km/mile free shifting. 7.Brief projection: The frames are so brief that you can easily grasp very important data, naming speed, some alarms and engine rpm. 8.Auto switch: Automatically turn on and off in accordance with the car engine, which will effectively protect the car battery. Except, remaining manual switch for your better control of this HUD. 9.Auto and manual brightness adjustment: Automatically adjusts its brightness to provide clearly visible projections both in direct sunlight or at night. 10.Detect accurate driving information from ECU of your vehicle via A1000 system. Specification: Type: Head up display Material: ABS Color: Black Display type: Digital Car model: With On-Board Diagnostic A1000 interface Product Size: (3.55x1.97x0.47)" / (9x5x1.2)cm (L x W x H) Projection Size: 3.0 inch Environment: ~40c+80c atmospheric pressure 86-106kpauy Alarm sound level: >>=30db Working voltage: DC 9-16V Working current: 40mA Sleeping current: 15mA Compass precision:  ±1 ° Speed range: 0-400KM Package Includes: 1x A1000 Head up display 1x A10000 Cable (Approx 1.45m ) 1x Non-slip Mat 1x Reflection Film 1× User Manual NOTE: Item can not be used .The car battery. fault code elimination, km/mile free shifting. 1x Reflection Film. Type: Head up display. 3.Over-speeding alarm: Alerts you if you exceed the speed limit by setting over-speed buzzing alarm.