A9 5.5 inch Universal Car OBD2 HUD Vehicle-mounted Head Up Display, A9(Blue) Option:A9(Blue) and dont rotate it hard

and dont rotate it hard after winding up to avoid damage

Connection method: AP local connection

use time: about 7-14h)

2 portable hub with detachable USB C Cable and USB A Adapter which makes it a nice choice for laptop

Flash Time: 1/200s-1/20000s

A9 5.5 inch Universal Car OBD2 HUD Vehicle-mounted Head Up Display, A9(Blue) Option:A9(Blue) and dont rotate it hard1. 5. 5 inch color screen. Reflective readings. Non destructive installation. Plug and play. 2. Display function: driving speed, engine speed, instantaneous fuel consumption, average fuel consumption, clock, the number of kilometers traveled, the current driving time, and the acceleration time of 100 kilometers. It can detect and clear the car error diagnosis code without professional equipment elimination. 3. Overspeed alarm, water temperature alarm,