Sony MDR-EX500LP Vertical In-the-Ear Style EX Style Headphones (Discontinued by Manufacturer) Multiple-Layer Diaphragm For High-Resolution Sound Sonic Performance With Deep Bass 13.5Mm Driver Unit For A Wide Dynamic Range Neodymium Magnet Sound tuned by hand for best sound Constructed with metal material to minimize vibration New hybrid silicone type earbuds for better sound, more comfort, and secure fit - three sizes (S, M, L) Leather carrying case Cord adjuster