For what it's worth, the wireless headphones mentioned by the review as the best previous set (the Bang & Olufsen / Beoplay H9i) do come with a user-removable b

For what it's worth, the wireless headphones mentioned by the review as the best previous set (the Bang & Olufsen / Beoplay H9i) do come with a user-removable battery and do allow listening via USB-C as well. Somehow these never get mentioned in mainstream reviews, only Bose and Sony, even though they have superior fit & finish and, according to this review, sound as well.