In-ear wearable device

An in-ear wearable device, comprising:

• a customized housing having a housing wall and an inner cavity surrounded by the housing wall, wherein the customized housing comprises a first portion for being inserted into an acoustic meatus of a user and matching with a shape of the acoustic meatus, and a second portion for being exposed to an external environment when the first portion is inserted into the acoustic meatus;
• a panel mounted to the customized housing at an open end of the second portion away from the first portion;
• a ventilation hole at least partially disposed in the customized housing, wherein a section of the ventilation hole disposed in the customized housing is formed in the housing wall, the ventilation hole comprises a first orifice for being exposed to the acoustic meatus and a second orifice for being exposed to the external environment when the user wears the in-ear wearable device;
• and
• a ventilation rate adjusting device mounted in the ventilation hole, wherein the ventilation hole and the ventilation rate adjusting device constitute a ventilation channel which is isolated from the inner cavity of the customized housing, the ventilation channel is configured to fluidly connect the acoustic meatus of the user to the external environment when the user wears the in-ear wearable device, the ventilation rate adjusting device comprises an operating portion located on the second portion, disposed at the second orifice of the ventilation hole, and exposed from an outer surface of the customized housing, and the ventilation rate adjusting device is configured to be manually operable to adjust a ventilation rate of the ventilation channel with the operating portion to adjust audio characteristics of the in-ear wearable device, wherein the ventilation rate adjusting device further comprises a movable portion and a fixed portion;
• wherein the ventilation rate adjusting device adopts a one-way valve structure and comprises a valve core as the movable portion, a valve seat as the fixed portion, a press portion as the operating portion, and a spring configured to apply an elastic force to the valve core, the valve seat comprises a fluid channel communicated with the ventilation hole, and the ventilation rate adjusting device is configured to move the valve core relative to the valve seat against the elastic force of the spring when the press portion is pressed, so as to adjust the ventilation rate of the ventilation channel;
• and
• wherein a moving direction of the valve core is substantially parallel to an extending direction of the ventilation hole at the ventilation rate adjusting device.