A perfect headphones, particularly for frequent flyers. The noise reduction works very well and is a real treat on lnagen flights. Meanwhile, I've even gone over, just to turn only NoiseGuard without hearing music. The only (small) criticism is possibly that you can not remove the battery pack to sometimes to use the headset so. On the other hand the objective, however, would not really help. So, for each frequent flyer and those who finally want to enjoy in pleasant degree music and movies on board an aircraft, the PXC 300 is an absolute must !!!
