Sennheiserrsquos new cx 100 headphones offers a powerful sound experience with a deep and punchy bass the new ultra small design guarantees excellent comfort while the included set of ear adapters in four different sizes xs s m l ensures effective noise blocking that will really let you feel the beat features earphones with powerful sound and deep bass ultra small design for excellent comfort 4 ear adapter sizes xs s m l for effective noise blocking 2 year warranty tech spe