Patent ID: 11877110
Assignee: BOSE CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. An in-ear audio output device, comprising:
an acoustic chamber defined by an earbud housing shaped to fit in a concha of an ear of a wearer of the in-ear audio output device, the earbud housing comprising:
a feedforward microphone disposed in a sound port, the sound port configured to be aligned with a concha cymba of the wearer when the device is worn;
a mass port configured to be aligned with the concha cymba of the wearer when the device is worn; and
a first air flow channel extending from a first portion of the housing surrounding the sound port to a second portion of the housing, the second portion of the housing being deeper within the ear and closer to an ear canal opening of the ear as compared to the first portion of the earbud housing.