Noise-canceling headphones are designed to reduce unwanted ambient sounds, allowing users to enjoy their music or podcasts without distractions. They use a technology called active noise cancellation, which involves microphones that pick up external sounds and produce sound waves that are the exact opposite, effectively canceling them out. This feature is particularly useful in noisy environments like airplanes or busy offices. In addition to active noise cancellation, many noise-canceling headphones also offer passive noise isolation. This is achieved through the physical design of the headphones, which helps block out sound by covering or sealing the ears. Together, these technologies provide a more immersive listening experience.