What makes you think that companies, particularly those whose main business are headphones and related accessories, aren't already trying as hard as possible? If someone was able to make those wireless miracle earphones, they would obviously sell like hotcakes. That is a much stronger motivation than anything Apple can do.
Is the market BIG enough to invest THAT much money and pull the tech out the Lab to get into the hands of consumers?
Like Nvidia and AMD.
Nvidia making out it's killing itself desperately trying to offer the very best GPU's it can as it's so hard if not impossible to go better.
Yet if AMD managed to out-do them, like Magic Nvidia would launch something to get the lead back.
They've done this a few times years ago.
Not perhaps the same, but my point is, Is there was some worldwide wire shortage, or it was deemed all headphones had to be bluetooth by law, you'd see a giant ramping up on innovation speed beyond what we have now, when they know it's a niche market and most people will just buy some cheap-medium wired headphones.
Battery seems THE issue.
There must be some sets that have a large (ish) battery that perhaps lays against the back of your neck aren't there?