Rexing GPS Logger for V1 Basic, V1-4K, V1P-4K, M1 Pro, M2 Max, M2 Max Pro, M2-4, V1 FHD, M4-4, and RW4

Works as it should. I plugged it in and within a minute is was logging my speed to the videos. Works great. It's accurate too.

Works perfectly on the RW4 Walmart version of the rexing dash cam. Displays speed on all the videos, ultimately providing all necessary info if you need to use the video for evidence

Great Product with fast shipping