Abstract: A pressure ring for an earmuff, an earphone, or the like, wherein the earmuff, or the like, includes a sealing ring which is applied against the head of the wearer around the ears and the pressure ring is behind and applies pressure to the sealing ring at the top, contact surface of the pressure ring. The contact surface is taller above the base surface of the pressure ring at the peripheral outer edge of the pressure ring than at the peripheral inner edge of the pressure ring so that the sealing ring is concave and the surface of the ear cover over the ear is concave. At least the peripheral outer edge of the contact surface varies in height between the taller upper and lower ends of the pressure ring, on the one hand, and the central region of the pressure ring, on the other hand. At least one groove channel wraps at least partially around the pressure ring and extends into the pressure ring from the contact surface.

Abstract: A holder is provided for securing a microphone or earpiece in position inside a helmet. The holder comprises a plurality of tubular rings of soft flexible material. One ring is adapted to be connected to a shell of the helmet, and the other rings are serially connected by resilient, short, thin, soft segments. The rings are dimensioned and arranged so that they can be nested within each other or pulled out to form an extending holder. A microphone or earpiece may be connected to one of the said rings.