Following extensive flight testing phase I come to the conclusion that Creative has an almost perfect headphones made here with geräuchunterdrückung. Sound quality is incl. performance of the bass well, noise reduction works both in passive and active mode well, the plane can be heard more or less the only aircraft noise and the announcements of the captain. the remaining disturbing cabin noise is suppressed. I am therefore very pleased with this unit, which I have taken 3.5 hours continuously, to have got no hot ears. therefore is recommended dieer headphones also just because of its price well.