Altec Lansing High Definition Noise-Free Earphones with Volume

Perfect silence for beautiful music. Just listen. InMotion earphones with Etymotic Research technology deliver a perfect combination of near-perfect sound reproduction and dead-quiet noise isolation. While musicians, audiophiles and acoustic engineers have utilized this (ER) technology since the mid 1980's, it is now available to enthusiasts everywhere with the introduction of these new inMotion earphones. Engineered to provide a genuinely accurate music stream, these micro earphones assure smoo