F9 OBD2 + GPS Mode Car HUD Head-up Display Speed / Water Temperature / Voltage Display Rolton and the charging box can

and the charging box can fully charge the microphone 8 times

reversing input: CVBS

the design of the turbine blades and air holes can efficiently cut the air and let you feel a softer cool breeze

you can do anything with it

F9 OBD2 + GPS Mode Car HUD Head-up Display Speed / Water Temperature / Voltage Display Rolton and the charging box can1. It displays driving data on the car windshield such as speed,RPM,water temperature,voltage,single mileage etc; avoiding drivers unsafely because of watching the instrument while driving. Drivers can read the driving information instantly, and always keep the best state on the way with HUD. 2. OBD mode display information: vehicle speed, water temperature, voltage, fuel consumption, speed, driving distance, driving time, time, oil temperature,