Sennheiser IE 8 Premium Earphones - (Discontinued by Manufacturer) High-fidelity noise-isolating ear-canal phones with unique sound tuning functionality and interchangeable cable Dynamic speaker systems with powerful neodymium magnets ensure outstanding sonic accuracy and clarity Excellent attenuation of noise (95%, up to 26 dB) Extremely durable housing and rugged interchangeable cable Sleek ergonomic design and various sizes (S, M, L) of eartips for a perfect, customized fit