Earfun Air Pro 4 -- Where is AptX Voice?

Hmmm, Earfun's reply saying AptX Voice is supported, has disappeared!? Anyway I have done what they said; I have emailed service@myearfun.com .  I'm sure others would appreciate the answer/solution, too, when all is said and done.

Dave

Thinking  about upgrading to air pro 4, but would also like to know if  AptX Voice is really supported.

Our product team is continuing to research and analyze the compatibility between this technology and the earbuds. We appreciate your support and understanding.

Hello i`m  very currious for Earfun Air Pro 4 and is they will work with Pipewire on  Manjaro Linux on Intel Wifi AX210 wifi6 BT 5.3 card  . I saw some post that Earfun Air Pro 3 had problem with LE audio on linux but post was 6m old so i have no idea with current  fw update how is but i wana buy  Earfun Air Pro 4  specificly to use them in Manjaro linux with pipewire and LE audio cos of LC3 codec and 32khz mic support ! I also have Soundpeats Air pro 4 they work fine in linux pipewire but only with HFP msbc AptX-voice is not supported by pipewire for the mic so guys my question to suppot is Earfun Air pro 4 will work with last version of linux kernel  ,bluez and pipewire with Intel Wifi AX210 wifi6 BT 5.3 card  ! I want finaly to have LE audio in linux and have full duplex and microfone to not be used in HFP low quality mode !