Earphones

An earphone, comprising a sound generation portion, an abutment portion, and an elastic connecting portion connected between the sound generation portion and the abutment portion, wherein in a wearing state, the sound generation portion is disposed in a concha cavity, the abutment portion abuts against a back side of an auricle, and the elastic connecting portion is wound around an outer periphery of a helix, wherein

• the sound generation portion comprises a first housing, a second housing, and a speaker assembly, and the elastic connecting portion is connected to a first end of the first housing;
• the speaker assembly comprises an annular support assembly and two sets of vibration assemblies spaced apart from each other along an axial direction of the annular support assembly and disposed on the annular support assembly, wherein the annular support assembly comprises a connecting ring and two basket frames, and the two sets of vibration assemblies are respectively disposed on the two basket frames;
• the two sets of vibration assemblies respectively include protrusion portions protruding beyond the annular support assembly along the axial direction and arranged opposite to each other;
• the speaker assembly cooperates with the first housing and the second housing to form two first acoustic cavities around two protrusion portions;
• and
• the first housing is provided with two pressure relief holes, wherein the two pressure relief holes are spaced apart from each other, each corresponds to one of the first acoustic cavities and connects the corresponding first acoustic cavity with an external environment.