Headphones
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Headphones 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. Hea
AKG headphones on a stand
Sennheiser HD 555 headphones, used in audio production environments (2007)
This adaptor allowed an airline passenger to plug a standard 3.5 mm stereo headphone into the twin mono jacks then common on airliners, avoiding the need to pay for a set of headphones from the airline.
Headphone cord with integrated potentiometer for volume control
In-ear monitor
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An in-ear monitor, in-ear, or colloquially earpiece is a listening device placed into the ear. More narrowly, the term in-ear monitor is defined as such a device used by musicians, audio engineers and
Headphones
…In-ear headphones, also known as canalphones, are small headphones that are inserted in the ear canal itself and have similar portability to earbuds. In-ear monitors (IEMs) are higher-quality in-ear headphones and are used by audio engineers and musicians as well as audiophiles. Generic or custom-fitting ear canal…
Elize Ryd wearing in-ear monitors during a concert in 2018
A case of in ear monitor receivers
A pair of universal IEM earpieces (Etymotic ER-4S)