Features: - 4-inch screen, high-definition display for a clear view- Simple to install and use, plug and play- Apply to cars with OBD II interface- Auto on and off, HUD with display board- Automatic and manual brightness adjustment mode, driving without glare- Km and mile can be switched freely to meet the need of each car- Fuel consumption can display MPGSpecifications: - Display information: Speed, engine speed, water temperature, battery voltage, fuel consumption ( KM / L or MPG ), speed can free switch between kilometer and mile- Display alarm: Shift reminding, fatigue driving reminding, low voltage alarm, high temperature alarm, speed alarm- Alarm sound level: 30dB and more- Working voltage: DC 9 - 16V ( DC 12V / 400mA )Get more information, please click here E260 User Manual Specifications: Color Name: BlackMaterial Type: Plastic, electronic components Dimension: 110*55*22mmWeight:250g key word:head up display,speed warning projector,car,vehicle,fuel consumption