Item Weight:340g Special Features:OBD+GPS dual system Color Name:Black Item Size:12.2x9.1x3.2 Voltage:5V Model Name:HUD-F9 Package include: 1x HUD 1x OBD Cable 1x USB Cable 1x Base bracket 1x Rotating suction cup bracket 1x User Manual Functions: OBD+GPS dual system HUD Navigation:Turn on the mobile phone Bluetooth,the mobile phone and HUD bluetooth are interconnected to achieve accurate real-time data synchronization. Three ways Different installation OBD information: vehicle speed,engine RPM,water temperature,voltage,instantaneous fuel consumption,average fuel consumption,driving distance measurement,driving time ,Turbo test ,accelerating competitive mode,brake performance test mode, display detail facult code in text, and clear the fault code GPS information:speed,voltage,driving time,driving mileage,local time,compass,altitude Alarms: low voltage alarm,high water temperature alarm,over speed alarm, RPM Alarm,DTCS Alarm,Engine failure alarm,freely switch between kilometers&miles. Voltage: 12V(if you use GPS system by USB cable ,surport voltage:12-24V) Note:This product just available for cars with OBD2 agreement (European region vehicles after '04, Other region vehicles after '07).This product doesn't support JOBD and OBDI. OBD model is not compatible with hybrid electric vehicle, diesel car, pickup truck, RV, computer modified car, it is recommended to use the GPS model.