Patent ID: 11944172
Assignee: APPLE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC A  B  H  F | IPC A  B  H

Claim 12:
13. A portable listening device comprising: a
speaker;
a wireless antenna;
a rechargeable battery;, one or more electrical contacts arranged to couple power to the rechargeable a housing arranged to at least partially enclose the speaker, the rechargeable, battery, and the wireless antenna, the housing defining a back volume behind the speaker and a front volume in front of the speaker, the housing further defining a tube-shaped distal end region acoustically coupled to the front volume and arranged to direct sound generated by the speaker into an ear canal of a user, wherein:
the tube-shaped distal end region includes a tip and a distal portion opposite the tip;
the distal portion is coupled to the back volume; and
the tube-shaped distal end region is continuously tapered from the distal portion toward the back volume; and
an accelerometer positioned within the housing, and configured to detect a user input on the housing.