Push Sound Notification

I want to be able to send SOUND notifications to visitors of specific pages. My website provides valuable information that is very time limited, and people should be able to react as soon as possible, so I was thinking that push sound notification could do the trick.
It must work without the need to refresh, and to be able to be pushed, aka when I push it from the backend, the customers who are on the specific page (not accross the entire website) get the notification. It’s best if it’s sound.

Any ideas for plugins or ready solutions? No problems to be paid.

Thanks!