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.
Most people want a flat frequency response, so the headphones themselves don’t change the sound.
These headphones have really cut mid frequencies, and really shrill high frequencies.
So they would sound like any other cheap $50 headphones.
That’s a shame.