Looking around the business class cabins on any aeroplane, it's clear that for many travellers wanting traditional big-brand quality headphones , it has to be either Bose or Sennheiser. On one recent British Airways flight, I counted five Bose to four Sennheiser.

PRO

CON: They wont pair to any Bluetooth device after using the headphone jack for the first time; I've had them for around a month and now I can only use them wired since they are not even discoverable by Bluetooth devices, they appear to be stuck in airplane mode

Sennheiser's PXC 550 Wireless Headphones Should Put Bose on Notice

Comfy; innovative; elegant design; Outrageously good battery life; Great sound and a first-class tuning app; Active NC to rival Bose

Touch controls may not suit some; Volume gesture could be more granular; Non-user-replaceable battery; $50 more expensive than Bose QC35

Let me get this out of the way; I'm not an audiophile. Granted, I really love good audio. I do have a pretty good ear and I really enjoy music. However, I don't believe that there are a lot of objective ways to test headphones.

Good quality construction; Good; balanced audio; Quality fit and finish; Lightweight and built for the road warrior; Super comfortable; Works well with Android devices; Multi-modes of noise cancellation (Adaptive; Wind; Max); Equalizer through app saves to headphones (not just through software),...

Super light-weight construction leaves me worried about longevity and durability

The Sennheiser PXC 550-II are decent, well-rounded headphones. These premium-looking over-ears are very similar to the previous version...

If you want a pair of no-frills, great-sounding headphones that you can take with you anywhere and wear all day, look no further. These headphones will do that for you. They're not the most exciting to look at, but they are solid performers.

Great sound; Lightweight and comfortable design; Portable and compact; Noise-cancelling is effective;

Would like more adjustable EQ; Not the most premium design; Touch-sensitive panel can be over-sensitive;