Over the past couple of years, British hi-fi company Bowers & Wilkins has become quite serious about headphones. With its latest model, the PX, the company became a serious contender in a hot niche: Wireless, noise-cancelling headphones.
B&W replaced its P7 Wireless model with the new PX in early October. I've had about 10 days to test them out. In many areas, the PX are among the best in class, but minor nuisances keep them from being perfect.