The M2 is almost as good but ambient noise is a little more noticeable compared to the Bose

These headphones are bloody fantastic compared to all these devices!Compared to my roommate's Bose QC15s, these don't have quite the same noise-cancelling abilities, but they were perfectly adequate for keeping me happy on the various airplanes, even while seated near engines

Voice and instrument sounds a little blurry compare to my im03

These headphones are bloody fantastic compared to all these devices!Compared to my roommate's Bose QC15s, these don't have quite the same noise-cancelling abilities, but they were perfectly adequate for keeping me happy on the various airplanes, even while seated near engines

I wanted to switch to cable;- the top headband is uncomfortably hard compared to the PXC450;- while over the ear, it is just over the ear and my ears got claustrophobic with this headphone;- georgeously design, but feels more fragile compared to the PXC450.I am sticking with my old PXC450 for the time being.

The headphones were also over tight on my head but the main reason I returned them was because the sound was very "muddy" compared to my Definitive Technology Symphony 1's.

The sound quality is good compared to other wireless headphones(not as good as wired headphone though), the active noise cancellation works, but it can only connect to cellphones

I generally love Sennheiser products b/c of their quality and reputation, but the awful wireless performance of this headset especially at this price is unacceptable

Some fault the B&O for having finnicky touch controls; these have no touch controls and only 2 buttons: on/off, vol up/down

In terms of high-quality plastics mixed with metal bones, they are more a peer to the less expensive Bose and Sony; the B&O clearly wins in build and material quality

The noise cancellation is okay, but nowhere near the levels of the Bose QC35 or Sony WH1000.Overall there's much better options for this price that sound almost as good, or even better.

The mid-bass hump I experienced in passive wired mode was completely gone and smoothed out as soon as you enter active mode

These are every bit as good as I'd hoped they would be

these headphones sound almost as good as my wired B&O H6 2nd Gen headphones

It's not as good on these as on any of their competitors, but it doesn't suck

Comfortable to wear for 8+ hours on flights or when working as long as you adjust the cups properly and don't have them putting pressure on your ear

However, they don't sound nearly as good as the Sennheisers and also will leave your scalp in a world of pain after 30 minutes.

The earcups aren't as soft as on other products though, and for an over-ear the cups are surprisingly small, so if you have huge ears you may want to try these before you buy

So if you're buying them because they sound better than the Bose, don't bother as they are larger and won't play high quality files

I have also noticed that the noise cancelling does not seem to be as effective as with the 550s, but I do not notice as much wind buffeting.

The noise cancellation is not as great as I would have hoped, but much better than my last pair of headphones which were "on ear" and did not really block anything.

Those who prefer a warm, focused, bass-forward sound will prefer the Sonys