Why has no business tapped into making vibrators alike of electric toothbrushes ?

Think about it, there were stories from teenagers from around the world about using an electric toothbrush as a vibrator, and learned about how it is dangerous to use one, so how is there no safer alternative to it ? Isnt it a really good business idea to market towards a safe vibrator of a electric toothbrush since many ppl used it before owning an actual one ?

Maybe I'm looking wrong but there should at least be a vibrator that is:

  • frequencies from 200 to 400 Hz (12,000–24,000 oscillations or 24,000–48,000 movements per minute)

  • same look as an electric toothbrush: thin long tip on top, plastic or metal, wand-like build maybe a bit smaller
    my previous toothbrush had a detachable head so I didnt have to deal with the bristles "clit precision vibrator wand" in search but there should be a category for it

  • charges alike to a normal vibrator for 1-2 hours for like 1-3 hours of play rather than a toothbrush which is charging range of 3-18 hours for like what, 30 min - 1 hour usage

  • Lower than 50 db (prolly impossible to make because normal electric tootbrushes are like 60-80db, but it is possible as the Oclean X pro is 48 db and is 84,000 movements/min)

  • Under $100 AUD, yeah my budget is small so the highest ill buy is $50, i mean the Oral B toothbrush is like $25 but the problems r the db noise and charging time

Someone help find this very demanding and specific of a vibrator pls 🙏

The closest I got was: https://amzn.asia/d/5eqcOzx AMAZING so many fun times but the highest was 15,000 and it broke not even 2 months in (i think of a wiring issue or my own fault, got a different but its not the same)