Sony in-ear headphones assure you with supreme quality music. This pair of Sony earphones will let you experience the real essence of music. This pair of Sony MDR E9LP In-Ear Headphones has a dynamic driver with Neodymium magnets and is equipped with an ergonomic design that delivers optimum performances. The 13.5mm driver of the Sony in-ear headphones provides amplified sound quality with powerful bass. These features combine to offer an unmatched experience of listening to music.