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.
If you don’t think you need ANC you’ve never experienced good ANC, even the best passive noise isolation won’t quiet down the sound of a full cafeteria or bus.
No wired iems will never be obsolete, but I will just be leaving them at my desk where the downsides over wireless are less.
I’ve used passive noise isolation earbuds that work better than any ANC. This one time I took them off after a long flight, only to realize that a toddler was crying behind me.
Edit: lol at the downvotes! https://maxrockearbuds.com/
Yeah, idk why people are downvoting you so hard. There are some seriously good passive noise cancellation buds out there. Kind of insane when you actually try them.