Seems you failed to realise that 'noise-cancelling' headphones is good for noise cancelling, not just listening to music. My Bose QC35 set is ~4 years old, on

Seems you failed to realise that 'noise-cancelling' headphones is good for noise cancelling, not just listening to music. My Bose QC35 set is ~4 years old, on their second set of muffs and only play sound when I fly, once or twice a year.