Founded on a mission to be true to the ear, Etymotic is a pioneer in high-fidelity audio and hearing innovation. With origins in acoustic research and hearing loss diagnostics, Etymotic invented the world’s first insert earphones in 1984 and introduced the groundbreaking ER-4 in 1991—establishing the gold standard for noise-isolating, high-definition in-ear monitors. Now part of the Lucid Audio family, Etymotic continues to lead with engineering excellence, serving musicians, audiophiles, researchers, and hearing health professionals worldwide. With over 100 patents and a legacy of category-defining products, Etymotic remains dedicated to innovation, education, and hearing preservation.