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: Black Material Type: Plastic, electronic components Dimension: 110*55*22mm Weight:250g