That's all well and good, but it's not enough to differentiate them from the other products out there. As far back as 2009, Sony had integrated a similar sensor into its MH907 earbuds, with the likes of Parrot's feature-packed Zik 2.0 over-ear headphones, and Apple's AirPods following suit. Plus, these days, everywhere you look an audio company is sneaking some sort of tech into its headphones. And, much of it is a lot more impressive than what B&W is offering (if that's your sort of thing). Throw a stone and you'll hit a pair of wireless earbuds that share your music. And, soon enough, voice-powered cans with integrated AI (like Bose's new QC35 headphones with Google Assistant built-in) could become much more common.

But, as B&W fans will attest, its brand has its own pulling power. Aside from the premium design, which is also present this time round, the sound quality of its devices tends to be top-notch. In the case of the PX headphones, the ability to manipulate the noise cancelling aspect (to block ambient car sounds, or let in chatter) is attention-grabbing. And, then there's the battery life: 22 hours of playback in wireless mode, and 33 hours when wired. Speaking of the design, the PX boasts a leather headband, and an etched-aluminum finish. You can grab them in either grey or gold starting today. Is that enough to make you part ways with 37 bucks more than what you'd pay for the (solid) B&W P5 wireless headphones? Well, that's your call.