Overview: _x000D_ _x000D_This product is for drivers' safety, at high speeds, especially in high-speed driving at night, in order to avoid the driver to look down their head to watch the instrument, and decrease car accident. HUD can project the important information displayed by the instrument (such as speed) onto the windshield, it can not only to help determine the speed of inexperienced novice to control their speed and avoid many of the speed limit road due to speeding violation. More importantly, it enables the driver instantly read the number in great vision and always make drivers eyes on the road in clear mind. _x000D_ _x000D_ _x000D_ _x000D_Specifications: _x000D_ _x000D_Environment Temperature: -40~+80 _x000D_ _x000D_Barometric Press: 86~106 KPa _x000D_ _x000D_Relative Humidity: 10%~95% _x000D_ _x000D_Environment Voice: ≤60 dB(A) _x000D_ _x000D_Alarm of Sound Level:≥30 dB(A) _x000D_ _x000D_Work Voltage: 9V~16V DC (12V DC / 400mA) _x000D_ _x000D_Item Size: 15*8.5*1.5cm / 5.9*3.34*0.59in _x000D_ _x000D_Package Size: 16.5*13*4.5cm / 6.49*5.12*1.77in _x000D_ _x000D_Package Weight: 280g / 9.87oz _x000D_ _x000D_ _x000D_ _x000D_Package List: _x000D_ _x000D_1 * HUD Host _x000D_ _x000D_1 * OBD2 Interface _x000D_ _x000D_1 * Mat _x000D_ _x000D_1 * Reflective Film _x000D_ _x000D_1 * English User Manual