If you are a commuter or music lover who uses their headphones to listen to music in public, then most probably you don’t like to ruin your musical moments with any external noise. To avoid this there is no better option rather than noise-canceling headphones. Many of us believe that to get better sound quality they need to spend more money, but that’s only half right; you need to also prevent external noise or ambient noise that could overpower your music from reaching your ears. Most of the audio industries have tried their hand at active noise-canceling headphones. But how do noise-canceling headphones work? Let’s find out.