Abstract: An earphone and a method for manufacturing an earphone are disclosed. The earphone comprises, a housing, including an outer housing and/or an inner housing, and a speaker unit, including a static structural part, wherein at least one portion of the static structural part is integrated with at least one part of the outer housing and/or inner housing.

Abstract: A method for displacement measurement in a driver and a speaker are disclosed. The method comprises, choosing a stationary position for fixing an optical sensor inside or outside the driver, placing the optical sensor by using the stationary position, wherein the optical sensor is in line-of-sight to a moving part of the driver and faces the moving part; receiving, by the optical sensor, light reflected by or transmitting through the moving part, and processing, by a processing device, signals for the received light from the optical sensor to calculate displacement of the moving part.

Abstract: An earphone and a method for manufacturing an earphone are disclosed. The earphone comprises, a housing, including an outer housing and/or an inner housing, and a speaker unit, including a static structural part, wherein at least one portion of the static structural part is integrated with at least one part of the outer housing and/or inner housing.

Abstract: The present invention discloses an earphone. The earphone comprises: an earbud, wherein a cable comes out from an open end of a stem of the earbud; and a strain relief element mounted at the open end, the material of which is softer than that of the stem. The strain relief element contains a cable tube where the cable passes through and the inner wall of the cable tube fits the cable in a close manner. According to an embodiment of this invention, the present invention can provide a better strain relief effect.

Abstract: The present invention discloses an earphone. The earphone comprises: an earbud, wherein a cable comes out from an open end of a stem of the earbud; and a strain relief element mounted at the open end, the material of which is softer than that of the stem. The strain relief element contains a cable tube where the cable passes through and the inner wall of the cable tube fits the cable in a close manner. According to an embodiment of this invention, the present invention can provide a better strain relief effect.