One earbud keeps disconnecting ans powering off.

My (right I believe) earbud keeps disconnecting itself as soon as I power it on. I've tried cleaning the earbuds and their case, I've tried factory resetting them, I've tried letting them charge overnight...and nothing. Nothing seems to fix the issue. At first when I put the earbuds in my ear one would make the dying sound, but now instead it'll just shut off as soon as it's powered on. And now I truly don't know what to do.