This answer doesn’t help any further.

I don’t want to know, what somebody does not know.
I want to know if or if not.

I searched around the web if the support any of the optional special protocols aptX and or aptX-LL, but there is nothing specified anywhere.

I guess, because these cans are no own development of electro-harmonix nobody there knows anything about them.
But what about to ask the Chinese developers or copiers ?

And please, Mister Neely, don’t spam my topic with colorful but useless Links