Patent ID: 9538298
Date: 2017-01-03
CPC Classifications: H04R

Claim:
1. A hearing aid including an earpiece, wherein the earpiece is located in an ear canal during use, characterized in that the earpiece includes: a coupling containing a speaker; a retainer that mechanically engages the coupling, the retainer being formed separately from the coupling, and the retainer being formed of a composite material including an organic carrier and an inorganic filler, the retainer having a first end for mechanically engaging the coupling and a second end opposite the first end thereof, the first end having a first outside diameter, and the second end having a second outside diameter, the first outside diameter being larger than the second outside diameter; and a sleeve axially surrounding the retainer, the sleeve being formed of foam rubber; wherein said retainer and said sleeve attenuate different ranges of audio frequency, and wherein said retainer attenuates lower frequencies than are attenuated by the sleeve.