Abstract: An earbud comprises: a casing in which a sound cavity is provided; a speaker disposed in the sound cavity and dividing the sound cavity into a front sound cavity and a rear sound cavity; and an acoustic structure located in the rear sound cavity. The acoustic structure comprises a first sound guiding wall and a cover plate, the first sound guiding wall is attached to a bottom surface of the rear sound cavity and is configured to, together with at least a part of an inner wall of the casing, constitutes a sound guiding groove, and the cover plate is mounted at an upper opening part of the sound guiding groove, such that the sound guiding groove forms a bass pipe which communicates from the rear sound cavity to at least one aperture of the casing.

Abstract: Discloses an earphone box and a control method thereof. The earphone box comprises a box body and a box cover, the box body is for containing an earphone and is connected to the box cover through a rotating shaft, and the box cover is rotatable relative to the box body and capable of being stabilized in a state of forming an angle with respect to the box body. The box body is provided therein with an angle detector which is capable of detecting a rotation angle of the rotating shaft and outputting a detected signal. The box body is further provided therein with an earphone box processor. The earphone box processor receives the detected signal, and when determining that a detected angle value indicated by the detected signal matches a preset angle value, outputs an operation instruction corresponding to the matched preset angle value.

Abstract: An earbud comprises: a casing in which a sound cavity is provided; a speaker disposed in the sound cavity and dividing the sound cavity into a front sound cavity and a rear sound cavity; and an acoustic structure located in the rear sound cavity. The acoustic structure comprises a first sound guiding wall and a cover plate, the first sound guiding wall is attached to a bottom surface of the rear sound cavity and is configured to, together with at least a part of an inner wall of the casing, constitutes a sound guiding groove, and the cover plate is mounted at an upper opening part of the sound guiding groove, such that the sound guiding groove forms a bass pipe which communicates from the rear sound cavity to at least one aperture of the casing.