Patent ID: 8976995
Filing Date: 2015-03-10
Classification: H04R

Abstract:
1. An ear unit for stably fitting in an ear having an antihelix, a tragus and a concha surrounded by the antihelix, wherein said ear unit is shaped as a decremental curve, said decremental curve being configured to correspond to the antihelix of the ear with a surface shaped in such a way that the decremental curve falls along an inner part of the antihelix and is partly positioned under the antitragus, wherein the decremental curve comprises two ends, a distance between the two ends being approximately equal to a distance between a first cavity formed under the tragus of the ear and a second cavity covered by a lower node of the antihelix of the ear, and wherein, when the ear unit is positioned in the ear, the ear unit is provided with a curvature conforming to an inner surface of the concha, and wherein the curvature extends to an outer circumferential surface of the ear unit, the outer circumferential surface contacting an inner circumferential surface of the antihelix when the ear unit is positioned in the ear.