Sennheiser's IE 6 delivers high-grade audio performance, superb, customized noise isolation and accessories for hassle-free transport. Featuring dynamic transducers and an enhanced bass response ideal for your vast music collection, the IE 6 will show you how "low" your tunes can really go. By providing 3 sizes of ear adapters, a customized fit is guaranteed without intruding the inner ear canal. This seal blocks out noise pollution and allows you to listen at a lower, safer volume level without sacrificing audio detail. Painstaking effort was made to measure optimum cable lengths and ear adapter sizes to ensure an ergonomic, simple use with no cable-tangling-hassle. The low-profile design of the IE 6 speaks volumes (literally) of class and elegance without the intrusive feeling from most in-ear headphones. The IE 6 stores quickly and safely in the included carrying case.