Faced with the prospect of a flight half way round the world, and back again, I decided that I needed something to reduce the omnipresent and oppressive noise of a 747 economy cabin. After much reading of specifications and reviews, I plumped for these headphones by Sennheiser, being unwilling to pay the premium price charged by Bose for their QC `phones.
The first thing to bear in mind with these, is that they are `noise reducing' NOT `noise cancelling'. They will not, for example, block out the sound of other people talking, children screaming, dogs barking etc. But, they will do a good job of reducing persistent low-frequency sounds such as fans, air conditioning units or jet engines. I must admit to being a little disappointed that when using them, I could still hear the AC / engines whilst in flight. However, the background noise was greatly reduced and it certainly made listening to music and film soundtracks more enjoyable and less tiring than without. I found then comfortable enough to wear while attempting to sleep, blocking out a significant portion of the omnipresent `roar' associated with jet travel.
These `phones are small and light, being foldable for easy storage. The downside is, that the `noise reducing' electronics are contained in a cylinder a little larger than 2 AA batteries end to end. This has a clip to enable it to be attached to your shirt / top. Otherwise you can leave it to sit in your lap. This is a little fiddly and a bit of an annoyance, but the alternative is to have the electronics attached to the earpieces which would naturally make these more bulky and less comfortable. Also, the unit is permanently wired in, so you cannot detach if you wanted to listen without the NC bit. Haven't tried them on the train yet, but imagine they would work very well there as well.
Sound quality is very good, definitely a big improvement over the headphones supplied by most airlines. Comes with an airline standard connector so you can plug straight into the sockets provided with your in-flight entertainment system. Also comes with a handy travel case, but takes a bit of patience and practice to fold them back up and stow along with the cable, after use.
[...]