"headphones" 的定义和意义

What are "headphones"?

Headphones are a device used for listening to audio privately. They consist of two small speakers worn over or in the ears, connected by a band or frame that rests on the head. Headphones come in various styles, such as over-ear, on-ear, or in-ear, and can be wired or wireless. They are used for personal listening to music, podcasts, or other audio content without disturbing others. Some headphones also include features like noise-cancellation, built-in microphones, and controls for adjusting volume or managing calls.