Who knows. I had a late dec19 unit, with 2b588. Well built, I like them.
the battery consumption is even, the sound is good, the anc pretty strong but definitely not crazy as I read it was for the first version.
The fit test is ok, the mic are ok, never failed a call even if the voice is pretty muffled (I think it’s ok for the in ear headphones).
i do not return, tomorrow is my last day.
I just complaints many bugs related to the connectivity: sometimes on bud does not respond, sometimes it doesn’t change mode, and many other minor bugs that disappear onvmce i put them in the case and connect again.
I’m losing my loosing my hopes for an incoming update, we probably see something in months, that will address the bugs I mentioned before.
ANC will stay the same IMHO.