Bowers and Wilkins Px7 S2 Review | CNN Underscored
Bowers & Wilkins PX Review | HuffPost UK Tech
Bowers & Wilkins PX8 Review: Is $700 Too Much for Wireless Noise-Canceling Headphones?
Teardown, Bowers & Wilkins PX on Behance
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