...those boards don't work on water, nor roads, gravel, or any surface but conductive ones.
And those have only 7min autonomy, and a terrifyingly loud sound, but hey, it's working !
https://www.youtube.com/watch?v=plwX5NtF530
https://www.youtube.com/watch?v=H3lg6BTDJeA
And those have only 7min autonomy, and a terrifyingly loud sound, but hey, it's working !
https://www.youtube.com/watch?v=plwX5NtF530
https://www.youtube.com/watch?v=H3lg6BTDJeA