His side: consistency with and without active noise attenuation, good quality, no glaring imbalances. Comfort: it keeps track of round cushions on the ears, assured look. It burns after a moment. Sound attenuation side: forget walking, there is a half-second echo on every step, it is unbearable. Sitting, it is correct in severe, totally ineffective in voice conversation tones (the pest who spend two hours hanging from their mobile phone em .... you continue to der). After trying two Bose QC, a Senneiser-ear and Harman Kardon Noise Cancelation in the Fidelio is one that gives the best sound, but the worst attenuation.
