This possibly reminds you of an electric bike, so you could be confused as to why are electric bikes legal but not scooters? Properly, electric scooters can access higher speeds of around 30km/hour, although the battery needs for being recharged following a particular distance (between 10 and 40 miles). https://andersonaouzh.suomiblog.com/a-review-of-neumatico-scooter-electrico-45656188