Noise-canceling headphones are designed to reduce unwanted ambient sounds. They use microphones to pick up external noise and then generate sound waves that are the exact opposite, effectively canceling out the noise. This technology allows users to enjoy music or podcasts without distractions, making them popular for travel and busy environments. There are two main types of noise-canceling headphones: passive and active. Passive noise-canceling relies on physical barriers, like cushioned ear cups, to block sound. In contrast, active noise-canceling headphones use electronic components to actively counteract noise. Both types enhance the listening experience by creating a quieter environment.