Speedometer - Digital GPS Speedometer - Head-up Display - KMH/MPH - With driver fatigue alert and speed warning - For all vehicles BBQ Tools Shield your mattress from dust

Shield your mattress from dust

sturdy and portable

or shifting sideways

e a nose plier to spread the U-shape ring on the top open

Bayonet ring buckle

Speedometer - Digital GPS Speedometer - Head-up Display - KMH/MPH - With driver fatigue alert and speed warning - For all vehicles BBQ Tools Shield your mattress from dust[Dual GPS Beidou Module] The GPS odometer receives satellite signal data via a dual channel GPS Beidou satellite module, allowing you to drive without tilting your head, significantly improving driving safety. [Key Features] Equipped with a built in head up display (HUD), GPS odometer, fatigue warning, speed alert, satellite time display, and compass display. Switch between kilometers per hour (KMH) and miles per hour (MPH), with automatic switching