MORE: Best noise-cancelling headphones 2016On the battery front, the PXC 550s have a claimed 30 hours of noise-cancelling duty before they need a top-up via the USB-type B charging port, though invariably that number will take a hit when listening wirelessly.
With both using the same noise-cancellation technology, you can wave goodbye to traffic noise and office hum.
When it comes to performance, however, the Momentums edge them with greater clarity and expression.
MORE: Bose Quiet Comfort 35 review, however slight.
Yo La Tengo’s Ira Kaplan accompanies the instrumental lullaby with his pensively deep vocals.
And when you’re away from a charging mat, you can use the Lightning port to charge.
When you use Air Pods, Siri automatically speaks your incoming messages as they arrive — and you can choose which contacts you hear them from.
Now with more talk time, voice-activated Siri access — and a new wireless charging case — Air Pods deliver an unparalleled wireless headphone experience.
Simply take them out and they’re ready to use with all your devices.
Sennheiser married noise cancelling and Bluetooth for the first time in its Momentum 2.0 Wireless (£380), and Bose has replied by applying the same functionality to its Quiet Comfort 35s (£290).
Now, right on cue, we have the Sennheiser PXC 550 Wireless: noise-cancelling, wireless follow-ups to the PXC 450s, and more affordable options to the existing Momentum 2.0 Wireless model.
With a pricetag of £330/0, these Sennheiser headphones might cost more than the average Joe might ordinarily spend on headphones, though anyone looking to defend the spend here should know that they won’t have to shell out for new earmuffs next winter.