Ear Cup

Ear cup for use in a hearing protector unit including two ear cups;

• and device to fasten the hearing protector unit to a wearer' s head, the device being connected to the ear cups, the ear cup comprising:
• a cup portion with a support surface;
• and
• a sealing device, placed against the support surface of the cup portion and intended to bear against a wearer's head in an area around an ear of the wearer, the sealing device including
• a sealing portion of a soft material, which includes a peripherally extending circumference slot and which, in its periphery area, bears against said support surface with the opening of the circumference slot directed towards the cup portion,
• a sound-attenuating ring, situated in the circumference slot of the sealing portion, and
• a clamping ring of a rigid material, situated in the circumference slot of the sealing portion to expand the sealing portion produced from soft material, the sealing portion being provided with a peripherally extending flange, introduced in the cup portion such that it bears against the inner side of the cup portion, whereby the clamping ring bears against the flange and presses the flange against the inner side of the cup portion for fastening the sealing device to the cup portion.