(1) Small headphones that rest on the outside of the ears. Typically offering better quality than the earbuds that come with many digital music players, earphones do not cover the entire ear as do regular headphones.
(2) Small headphones that are inserted into the ear canal. Also called "ear monitors," earphones have been used for years by performers on stage to better hear certain instruments as well as cues. They are also available with custom-molded inserts like hearing aids. See earbuds and headphones.
High-Quality Earphones
Earphones such as these have been used for years by performers on stage as well as in the mixing room. Using two or more tiny drivers inside and inserted into the edge of the ear canal for a tight fit, they offer clear, accurate sound quality. (Image courtesy of Ultimate Ears, www.ultimateears.com)
Custom Made for Your Ears
Employing the same process for making hearing aid inserts, these Custom Ear Monitors are made from impressions of the wearer's ears. The custom fit provides greater comfort and eliminates more ambient noise. (Image courtesy of Ultimate Ears, www.ultimateears.com)