I had these but just returned them. I have a set of QC35s I've been using for airline travel for a while and thought the mic addition would make a great passenger headset. Their mic quality is amazing, nothing to complain about there. However the passive ability of the Bose QC35 just doesn't cut it for our older and noisier cabins. I wouldn't hesitate to use these if I were flying a jet, but a single prop is just too loud.