What you're looking for is the radio headsets that airport ground support crews use. More than 20dB attenuation, headphones built in, designed to be worn an ent

What you're looking for is the radio headsets that airport ground support crews use. More than 20dB attenuation, headphones built in, designed to be worn an entire shift. If someone can deal with multiple Rolls Royce turbofans nearby while wearing these, you can too. Be careful to buy one with two drivers (some ground crews use the single headphone driver model to have an ear free to hear other sounds), and get a proper adapter to plug them into your audio source. Active noise cancelation only works in the 900Hz and lower range on consumer bose headphones. You can try the Bose pilot headsets if you want, but they are much pricier. You can get a good used ground crew set for about $100.