Over-ear (circumaural) headphones typically offer the most effective ANC. Their earcups can create a tight seal, and the earpads act as an additional barrier. That said, the less-common on-ear ANC models can still eliminate plenty of surrounding noise, are often far more comfortable, and stow away more easily.

ANC-capable earphones have also seen significant improvements in recent years. The most significant advantage of these models is their passive isolation; their eartips seal off your ear canal, effectively eliminating high frequencies even before you enable the ANC.

The advantages one style may present over another are less about ANC performance at this point and more about your preference and comfort. You can find class-leading active noise cancellation in each category.

Noise cancellation circuitry isn't cheap. If a model has been around for more than a year or two, you might find some deals, but a quality pair of headphones rarely sells for less than $200. If they do, the ANC on offer is probably acceptable for the price but not on the same level as the top-tier options. If you're looking for the best, prepare to pay between $350 and $400. Earphones are the exception, and you can get good performance for less than $200.

Whether it's worth spending that much depends on your typical listening environment. If you struggle to focus in the presence of noisy people, pets, or machines, then noise-cancelling headphones are absolutely worth the sense of quiet they can provide.

However, if noise cancellation isn't a major concern for you, focus on other key characteristics by exploring our lists of the best wireless headphones, the best earphones, and the best headphones overall. If you're on a tight budget, consider the best headphones available for under $50.

There are microphones on the earcup that pick up external noise. The noise cancelation circuitry takes that noise and produces an inverse signal, effectively canceling out external sounds.