With completely wireless earbuds, the rule is: when the battery fails, they have to be disposed of. Not so with the Fairbuds, that allow you to replace batteries in just a few seconds. Combined with a repairable design, the earbuds should therefore have an extremely long lifetime.
Nvm replaceable batteries, I keep buying 2-3 pairs of ear buds a year because I keep forgetting them in my pants when I wash them, or I give them a pat down and don’t feel them inside of them.
My dog chewed on one of my Buds 2 Pro earpiece after owning them for two months cause I left the door open. Managed to open the case and everything lol