<P> In - ear monitors ( IEMs ) are devices used by musicians , audio engineers and audiophiles to listen to music or to hear a personal mix of vocals and stage instrumentation for live performance or recording studio mixing . They are often custom fitted for an individual 's ears to provide comfort and a high level of noise reduction from ambient surroundings . </P>
<P> In - ear monitors ( IEMs ) are devices used by musicians , audio engineers and audiophiles to listen to music or to hear a personal mix of vocals and stage instrumentation for live performance or recording studio mixing . They are often custom fitted for an individual 's ears to provide comfort and a high level of noise reduction from ambient surroundings . </P>
what is the thing in the ear of singers
what is the thing in the ear of singers
In - ear monitors
In - ear monitors