Car Speed Projector 1/2 x Universal Helmet Clamp

1/2 x Universal Helmet Clamp

Can also be used for walking

does not operate the clock underwater

press the piston rod repeatedly until the suction cup vacuumstate no force to rebound

Car Speed Projector 1/2 x Universal Helmet ClampFeatures: Available for any car, easy to install, plug and play Screen 3. 5 inch HD display Multi color design makes the screen more abundant and easier to read Nano technology to eliminate double reflections,more clear. Rich Contents: speed,compass, speed alarm,free switch between km and miles Auto power on off: HUD start and off with vehicle started and shutdown, effective protection of the car battery; retaining the manual switch mode,more easy to