I've been wanting to try a vibrating penis ring but before spending the $$$$ want to get some opinions on them.

1. Have you found them worthwhile in giving you a powerful orgasm?

2. Some come with a battery attached, some run by wire from a battery/on, off at the far end of the wire & some are totally wireless. Any opinions, preferences?

3. Is the vibration noise very loud?

4. I'm thinking it would be hot to wear one under your clothes and go anywhere in public & orgasm without anyone noticing a thing. Anyone try this?

Thanks