In-ear receiver

An in-ear receiver for a headset and/or hearing aid that fits at least partially into an ear canal of a wearer when the in-ear receiver is used as intended, the in-ear receiver comprising:

• a housing that includes an ear canal section, which is configured to be inserted into the ear canal of the wearer when the in-ear receiver is used as intended;
• a resonant cavity, which is formed in the ear canal section and includes a front volume and a rear volume that is physically separated from the front volume by a physical separation that separates the front volume from the rear volume;
• an inner contour section of the ear canal section faces inwardly toward the front volume and inwardly toward the rear volume, wherein the inner contour section of the ear canal section defines the front volume and the rear volume;
• an outer contour section of the ear canal section faces away from the front volume and faces away from the rear volume, wherein the outer contour section of the ear canal section faces toward the ear canal of the wearer when the in-ear receiver is used as intended;
• a MEMS sound transducer that is disposed in the resonant cavity and that forms the physical separation between the front volume and the rear volume of the resonant cavity;
• and
• wherein with the exception of the MEMS sound transducer, the resonant cavity is devoid of structure depending from the inner contour section of the ear canal.