You get what you pay for. DC headsets are at best mediocre, but nothing touches the Bose A20 hence the associated price tag.
All these comments referring to how the Bose may not work for the high pitched whine of a turbine is complete BS.
the theory of wearing earplugs with Bose headsets stems from the old boys who fly the noisy American trucks (92) and the supposed hearing problems they have accrued, but it has never been medically proven. Probably just an attempt for a bit of compo at the end of your career - nice try.
The battery life on a Bose isn’t all that bad either as some make out....I have to replace the AA batteries every month and I fly on a daily basis.
Get over it and go to Costco and buy a big multipack of Duracell. Job done.
In summary, don’t be a skate - buy Bose.