Headphones
Headphones are devices worn on the head that include small loudspeakers directed at the ears. Headphones may be known as earphones, earbuds, stereophones or cans. Headphones usually usually include one speaker for each ear, although in some cases only one speaker is used (leaving the other ear free to listen to external sound).
The term headset describes a set of headphones with an attached microphone for two-way communication.
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