A method of producing a protective earmuff and earphone produced according to the method.

摘要

A method of producing a hood (1) for a hearing protector, the hood (1) produced by injection molding of plastic material, being characterized in that the cap (1) is injection molded from at least two different plastic materials which are made to combine and adhere to each other at an interface (12) in a single contiguous during the cycle of injection molding, with different properties in at least one respect, to improve the capability of noise suppression of the cap part (1) , by sound wave interference at the interface (12) between materials.