Sony Earphones EX Series MDR-EX55 Black Headphones Deep Bass OEM NEW Deep bass sound: 9mm EX Driver provides comfort fit and Supreme Comfort with Silicon housing for soft fitting Robust Sound achieved by use of high-power neodymium magnets Gold-plated L-Shaped stereo mini plug Supplied Accesories: Earbuds (Sx2, Mx2, Lx2), Holder, Carrying Pouch