GEYIREN A2 3.5 Inch Auto Vehicle GPS HUD Head Up Display Speedometers Overspeed Warning

GEYIREN A2 3.5 Inch Auto Vehicle GPS HUD Head Up Display Speedometers Overspeed WarningFeature:1. Available for any car, easy to install, plug and play.2. Screen 3.5 inch HD display.3. Multi-color design makes the screen more abundant and easier to read.4. Nano-technology to eliminate double reflections,more clear.5. Rich Contents: speed, compass, speed alarm,free switch between km and miles.6. Auto power on/off: HUD start and off with vehicle started and shutdown, effective protection of the car battery;retaining the manual switch mode, more easy to control HUD.7. Automatic and manual brightness adjustment mode, driving without glare.Specification: Working voltage DC8-18V Working current 40mA Sleeping current 15mA Compass precision ±1° Speed range 0-400KM Real time precision The same as satellite Satellite positioning time Cold start: 30s, hot start: 1s Size 88*53*13mm Current 1000mA Weight 40g Package Included:1 X A2 GPS HUD1 X 12V Charge Cable1 X Non-slip Map1 X Reflective film 1 X English User Manual