- The noise reduction is very good (in some competition to get noticed in this discipline little difference) - The sound, I find quite balanced (rock, pop, AAC-encoded) - now I use the headphones for audio books at home me in a quieter world to "beam" - 2 quarreling children ;-) - My old high-end headphones remain now again at home, since the move the effective NoiseCancelling seems more important in the car and on the plane, as even the most subtle resolution of the Nobel converter - my opinion.