Feature:1. HUD displays driving datas on the front windshield such as speed, water,temperature, voltage,single driving distance on the car front window glass.2. Driver can read the driving information instantly, and can always keep the best state on the way with HUD.3. Warn for fatigue driving - when driver are driving for 4h, the alarm will be blared.4. Warn for overspeed, voltage, water temperature, gear-shiftingmalfunction.5. Multi LEDs colour for your choice.6. Built-in sensor, this product can automatically adjust luminance according to light from outside.7. Made from good material - ABSPC, this product is heat-resistant.8. It can automatically turn on and turn off along with the cars starting and stalling.9. t can automatically match the vehicle type, plug and play.Specification:Material: ABS (Acrylonitrile Butadiene Styrene plastic ) + PC (Polycarbonate)Colour: BlackResolution: 3000Screens Size: 3.5Working voltage: 9V-16V DC (12V DC/ 400mA)Environment temperature: -40C-80CRelative humidity: 10%-95%Environmental noise:60dB(A)Dimension: 9*5.2*1.2cm/ 3.5 x 2 x 0.5/ L x W x HGross Weight: 152gPackage Included:1 X Head Up Display1 X OBD Connector Cable1 X User Manual1 X Sticker1 X Anti-slip Pad