I will not fly without

I'm traveling a lot for work on the plane and I'm excited about this product.
It reduces engine noise / ambient noise significantly and the disturbing for me value - and I hear so usually in the plane no music.
What caused not expect technically, are significant noise reductions in "uneven" sounds (conversations, crying babies, etc.), as this may filter neither the passive attenuation nor the electronics. However, even that is wearing in the office very pleasant and I use the headphones as a headset also like for the mobile phone.

One should keep in mind when buying, if you prefer a more on-ear or over-ear headphones. There in two versions pros and cons.