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Headphones with active sound cancellation, like the Bose ones. Do they still cancel sound when not playing music? Or do you have to pass a sound track through them for the sound cancellation to activate? I need silence.
I use mine with no music source for long flights, simply for the noise cancelling which drops a LOT of the engine/wind noise.
Headphones with active sound cancellation, like the Bose ones. Do they still cancel sound when not playing music? Or do you have to pass a sound track through them for the sound cancellation to activate? I need silence.