Active Noise Cancellation technology works through built-in microphones that pick up external sound waves, and then the processing system generates counter sound waves that are exactly identical to that noise but reversed in phase, which leads to the two waves interfering and canceling each other out before they reach the eardrum.
Despite the comfort and quiet that these headphones provide, some users may feel a kind of anxiety or pressure inside the ear. This is because the brain may interpret the sudden absence of low-frequency sounds as an indication of a change in air pressure, which is similar to the feeling that occurs during an airplane take-off, which may cause some people to feel dizzy or uncomfortable when using it for long periods.
