Active noise canceling, or ANC, headphones electronically counteract, or “cancel” out, external noise by generating a mirror image sound wave in your ear. Noise-canceling technology works best in environments where there’s a sustained din to the ear, such as a jet engine drone, which is why people wearing Bose noise-canceling headphones have become fairly common at airports over the last few decades. The truth is that budget headphones aren’t as great for listening to music and other audio as premium noise-canceling headphones from Sony, Bose and others, but you can find some pretty decent noise-canceling models for far less money. …
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