Headphones are great to use to listen to music, while watching television or viewing a movie, and when using your personal computer. There are thousands of applications where you can use headphones. There are a lot of brands and types that you can choose from nowadays, depending on the application.
Basically, a headphone has three parts: the driver, the earpiece and the attachment system. The driver is the ‘sound producer’. It is a transducer which converts electrical signal to the audio sound that you hear once you place the headphones on your ears. The earpiece is the physical part which you put to your ears.