Is it possible to buy a single earbud of liberty 3 pro?
One earbud of liberty 3 pro
Doesn’t appear so
You may be able to find something on say eBay but the issue will be if it will pair with your other earbud.
A few folks have stated they had paired two different buds from different sets of earbuds. A few others have said it did not work. Both of the above comments were not 3 pros and different as well.
So there may be a 50/50 that it will work or not. So if it will be tried, I would lose all connections. Put in the stated case and do a reset of the earbuds for a chance it may work.