Bowers & Wilkins PX is its first wireless noise-cancelling headphone - CNET
Bowers & Wilkins PX headphones – a study in contrasts – audioFi.net
Bowers & Wilkins Px8 Review | PCMag
Looks like it may be possible to replace the battery in the new PX8 for future reference. At least going off the PX design… if you are brave enough 😆 : r/headphones