A headphone is a device you wear on your head to listen to music or talk to someone over the phone.
You probably use headphones every day when watching videos online, listening to podcasts while walking, or gaming with friends. People often wear them at the gym to avoid disturbing others or in noisy environments like construction sites. Some people even wear them just for relaxation, putting on soothing music or nature sounds to calm down.
A listening device placed or worn in the ear, usually sold in pairs
Example: She handed me one headphone so I could listen too.
