Headphones are personal audio devices consisting of two small speakers worn over or in the ears, allowing individuals to listen to audio privately. They connect to a variety of devices, both wired and wirelessly, and come in numerous styles, each offering different features like noise cancellation, comfort levels, and sound quality. From casual listening to professional use in fields like audio engineering and broadcasting, headphones have become an indispensable part of modern life, providing a focused and immersive audio experience.