| 摘要 |
A partially occluding ergonomic earbud adapter is formed from low durometer materials. The exterior of the adapter is frustoconical and tear-drop shaped and formed with several fluted recesses which set apart finger-like flanges extending from an open base toward the tip of the adapter. The ergonomic flanges grip the inside of the ear canal as a result of elastic restoring forces of the flanges against each other and against the ear canal to form an ergonomic seal partially occluding sound from the ear canal while providing isolation. The inside wall of the adapter is formed to enclose and secure the earphone in a parabolic concavity formed by an undercut rib at the base. The cavity is abutted by a cylindrical channel extending through the adapter to an orifice at the tip to deliver high fidelity audio into a user's ear canal from the headset or another audio listening device.
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