- I have to have BLE v5.2 at least on my Windows device - It must have isosynchronous audio support (which I believe is an optional feature in the spec)

- The headset must have the same features too.

Then it is a question of which audio codecs are supported on those 2 devices. It's quite messy to be honest.

I don't think any ear pod style mic exists that isn't completely outclassed by a mic I could pickup 2 decades ago at Walmart for $10-$20.

The form factor doesn't help either, the mics are tiny. Phones have the benefit of a bit more space and a much more practical location.

https://www.bluetooth.com/specifications/specs/?types=adopte...

...and the GSM/UMTS/LTE/NR standards are at least an order of magnitude even bigger.

Sizes like that nicely lock out newcomers from the market, as it can't be entered without a strong financial backing.

https://www.intel.com/content/www/us/en/developer/articles/t...

Direct link: https://cdrdv2.intel.com/v1/dl/getContent/671200

https://ecma-international.org/publications-and-standards/st...

But in general there is very little support for 5.4 from the hardware side right now. I looked into ESLs (electronic shelf labels) which should be directly supported by 5.4 but you find almost nothing. Would just be nice if one could take any manufacturer's ESLs and they would just work. Right now there is a plethora of different standards.

I wont hold my breath for 6.2 support. There are not many devs on bluez and on the kernel side.

Same goes for A2DP with a remotely decent compression algorithm which doesn't sound like crap

I'm cynical enough to believe that these obvious huge missing parts of standard Bluetooth aren't accidental. They've surely noticed.

Most stuff now will happily access the first thing that connects to it while in pairing mode. I have many devices that a switch my headphone pairing between with ease.

The best pairing experience is with devices that have a pair button or let you hold down the power button to enter pairing mode. Although I've now ended up with headphones (Creative Zen Hybrid (Gen 2)) that have this, but also decide to just unexpectedly enter pairing mode when you disconnect all devices from it...

Apple has a proprietary USB protocol for pairing its own wireless keyboards, trackpad and mouse, and Microsoft and Sony have proprietary protocols for their respective gamepads.

This can already be done with LE audio, support is coming slowly.

But support (on both ends) is quite rare, experimental, and needs to be explicitly enabled.