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Noise cancelling headphones reduce unwanted sounds by using other light noises to "cancel" out the distraction. A small microphone is triggered inside the earpiece to create an "antinoise" when ambient sounds are detected. The signal that is produced cancels out the ambient sounds outside of the earpiece.

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11y ago
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16y ago

Sound travels in waves. There is an external receiver for the sound, and when it is received, the headphones send out waves (very quickly, mind you) that are "upside-down" or "opposite" from the soundwaves going in. Think of a wave going in as a mountain and the wave coming out as being a valley. Added together, the line becomes zero, and there is no more wave, and therefore no more sound.

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13y ago

they usually just have a snug fit and lots of thick padding and materials that block outside noise better than traditional headphones.

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Q: How do noise cancellation headphones work?
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Noise cancellation headphones work by blocking high-frequency sound waves and erasing lower-frequency sound waves. This can occur due to their ability to mimic incoming noise in order to produce their own sound waves.


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The headphones that are rated the highest for noise cancellation are Bose headphones. They are recommended for long flights and for times when you will want to cancel out outside noise.


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If you get real Bose headphones, yes they do have noise cancellation. It's pretty great. They do have knock off Bose headphones called Brose but they don't work as well as Bose.


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