Sony MDR-EX81LP Bud-Style Stereo Earphones (Black) (Discontinued by Manufacturer) Lateral In-The-Ear Headphones Elastomer Material Hanger Design 9Mm Driver Neodymium Magnet Closed type earphone structure delivers deep bass sound Elastomer hanger gives a snug, comfortable fit around your ears Soft, silicone rubber earbuds for a stable, comfortable fit Unique, aluminum shaft for lightweight stability Neodymium magnets (360 kJ/m3) for powerful bass and clear treble sounds