Device for a low-pass hearing protection

摘要

Device for a low-pass hearing protection against high-frequency sound vibrations and ultrasound, with two shell-shaped capsules which are held on an essentially semicircular headband and whose hollow inner spaces face each other, whose middle sound channel region has several feed-through openings and which are provided with an aperture plate at a distance from the feed-through openings. A diaphragm is arranged between the inner side of the sound channel region of the capsule and the aperture plate. <IMAGE>