Etymotic Research MC5 Noise Isolating In-Ear Earphones Black PLUS Blucoil Hard Case for Earphones Highly Accurate Sound Reproduction // Noise-Isolating In-Ear Fit Multiple Types of Eartips // Replaceable Filters Kevlar-Reinforced Cable // 3.5mm Plug // Storage Pouch Included Blucoil Earphone Hard Case: Perfect round-shaped 2-inch diameter case for Etymotic earphones // Durable, waterproof exterior cover that prevents earphones from damaging Black exterior and dark blue internal cloth lining for soft protection