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.
Replaceable batteries are coming to the EU in general, at least for portable devices, via the EU Batteries Regulation, which is in force already and requires all portable batteries to be easily removable and replaceable by the end user from 2027
EU has single handedly done more to improve
myselfmy life than my own government with this one law.