Headphones
Headphones
Headphones (/ˈhɛdˌfoʊnz/; singular: headphone) are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound.
Etymology
The term "headphone" is derived from the words "head" and "telephone". It refers to a telephone for the head, or a device that is worn on the head that acts like a telephone by transmitting sound.
Types of Headphones
There are several types of headphones, including:
- Over-ear headphones: These headphones have cushioned cups that cover the entire ear. They are also known as "around-ear" or "full-size" headphones.
- On-ear headphones: These headphones sit directly on the ear, without fully covering it.
- In-ear headphones: These headphones are inserted in the ear canal. They are also known as "earbuds" or "earphones".
Related Terms
- Sound: The sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium.
- Audio: The range of frequencies within human hearing, typically from 20 Hz to 20,000 Hz.
- Noise-cancelling headphones: Headphones that reduce unwanted ambient sounds using active noise control.
- Wireless headphones: Headphones that connect without a wire to a transmitting unit.
See Also
External links
- Medical encyclopedia article on Headphones
- Wikipedia's article - Headphones
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