Sunday, 22 May 2011

Headphone

                      Headphones are a pair of small loudspeakers, or less commonly a single speaker, held close to a user's ears and connected to a signal source such as an audio amplifierradioCD player or portable media player. They are also known as stereophonesheadsets or, colloquially cans. The in-ear versions are known as earphones or earbuds. In the context of telecommunication, the term headset is used to describe a combination of headphone and microphoneused for two-way communication, for example with a telephone.

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