HEARING-PROTECTING ANTI-NOISE DEVICE, WHICH HAS BOWLS FOR EARS FASTENED BY MEANS OF FRICTION

摘要

FIELD: medicine.;SUBSTANCE: hearing-protecting device includes first and second bowls for ears and head element. Bowls for ears are kept in fixed position on protruding ends of head bow by traction by means of friction force of first end and first bowl for ear and second end and second bowl for ear.;EFFECT: application of invention allows to change bowl for ear easily, if it is damaged or if other level of sound decrease is desirable, user does not need to buy whole new device.;11 cl, 15 dwg