The Sennheiser PXC 450 is a fantastic set of headphones with the best noise cancelling we've heard, superb audio quality and outstanding build - but it comes at a price.

Price; Dance fans may want more bass; Noise-cancelling bypass switch instead of automatic cut-out

Sound quality; Noise-cancellation; Fold-flat design; Hard case included; TalkThrough feature

Background noise is arguably the biggest single problem affecting music on the move. One can simply try to block it, of course, but active electronic noise cancelling looks the most attractive option.

let's get something out of the way immediately. the new sennheiser pxc 450 noisegard headphones are excellent, but they are too expensive- way too expensive. that's why they narrowly missed our editors' choice award. even so, bose's quietcomfort headphone series has finally met a worthy competitor.

Excellent noise cancellation; Comfortable fit; Deep low end; Great audio performance; Passive mode for music listening only

Very expensive; Quite large; Volume controls hard to use when in place

I use it for 2 years, and I'm not tired. Even if it does not offer perhaps the best "noise cancellation" of the market, it outperforms the competition in several ways. In particular, a remarkable musicality (this is a real headphone "audiophile" Sennheiser): no special coloring of the sound, not...

It might have been a brief look, but from what we heard, we are very impressed with the new headphones from Sennheiser. The only grumble we have in the lack of ability to detach the headphone cable, something that we've found really useful with the Bose when flying long haul, but at least the...

Runs on a single AA battery; noise cancelling very good; talk button

The Sennheiser PXC-450s are folding, noise-cancelling circumaural (around the ear) headphones with NoiseGard 2.0 technology and a TalkThrough switch. Comes with two adaptors (6.3mm and airline) and uses one AAA battery. Weighs 240g.

Transform your seaweed-class (hands in the air) budget airline into a luxury charter jet with the best noise-cancelling cans on the market; Airline pilots use NoiseGard-equipped headsets to tell each other dirty jokes at 35,000 feet, as the tech reduces the loudest roar to little more than a...

Even folded up, the bulky PXC 450s will comprise a significant part of your hand luggage; Basically, they're not meant for any kind of movement – take them to the gym and your neck muscles will get the biggest workout, and the vinyl padding quickly gets unpleasantly sweaty.

Sennheiser's PXC 450 is part of this brand's high end.  With its closed design and active noise reduction technology, NoiseGard 2.0 (see box), it supposed to offer optimal protection against ambient noise.  In addition, it has a

Audio quality; Very complete package; NoiseGard 2.0 and TalkTrough; Finishing touches and comfort; Folding and transportable

Size and weight; Price

Spectacular sound. Quality hardware. Low sound leakage. Talk-through is cool. Very satisfied. Going to start looking at amps to go with it too. Also, great customer service!!

Comfortable; Durable; Great Sound; Stylish

No cons

Bought these headphone because i have heard them before and also liked the fact that they are noise canceling. The noise canceling works really well on low frequency sounds like plane engines and car noise.

Can be used without batteries when they run out; Great sound quality in bypass mode; Great at noise canceling; Build quality is amazing; Ear cups are SOOO Soft; Detachable Cable

Not to blown away by the look of them; but some people like them

The way to go with sound sealing noise cancellation headphones...if you can afford them.

Comfortable; great sound; superior noise cancellation

Expensive; poor packaging (check your pair first before opening