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.
I mean for working out and on the go I use Bluetooth ear buds.
But damn do I sometimes wish I still had a headphone jack on my phone. Like just grabbing my nice pair of open ear headphones, throwing down on the couch and listening to music for example.
And of course I always had backup wired ear buds with me, just in case the battery ran out.
But eh, I can live without the headphone jack, now I just wish they would have used the space for a bigger battery.