Abstract: Earphone positioning and retention mechanisms are disclosed. One earphone described includes a speaker driver, a flexible eartip comprising a first oval shaped contact surface at an opening forming a hole through the eartip, the first oval shaped contact surface configured to contact an outer surface of a user's ear canal when worn, a body portion comprising a second contact surface configured to position behind an anti-tragus portion of the user's ear, and, a retaining member formed of a compliant material, comprising a third contact surface configured to conform to a cymba conch portion of the user's ear, where the body portion and the retaining member are shaped in a way that the second contact surface contacts the anti-tragus portion and the third contact surface contacts the cymba conch portion at the same time, when the first contact surface is already in contact with the outer surface of the ear canal.

Abstract: Earphone positioning and retention mechanisms are disclosed. One earphone described includes a speaker driver, a flexible eartip comprising a first oval shaped contact surface at an opening forming a hole through the eartip, the first oval shaped contact surface configured to contact an outer surface of a user's ear canal when worn, a body portion comprising a second contact surface configured to position behind an anti-tragus portion of the user's ear, and, a retaining member formed of a compliant material, comprising a third contact surface configured to conform to a cymba conch portion of the user's ear, where the body portion and the retaining member are shaped in a way that the second contact surface contacts the anti-tragus portion and the third contact surface contacts the cymba conch portion at the same time, when the first contact surface is already in contact with the outer surface of the ear canal.

Abstract: A manufacturing process for a grille element of a media playback system is provided. In one embodiment a sheet of plastic is thermoformed into a desired shape. Holes may have been drilled into the sheet of plastic prior to being thermoformed. Once thermoformed into the desired shape, a coating is applied and cured via a subsequent heat treatment process that anneals the material to remove additional stresses in the material from thermoforming. Once formed and heat treated, the formed component can be bonded to profile substrates to help maintain the formed desired shape.

Abstract: Earphone positioning and retention mechanisms are disclosed. One earphone described includes a speaker driver, a flexible eartip comprising a first oval shaped contact surface at an opening forming a hole through the eartip, the first oval shaped contact surface configured to contact an outer surface of a user's ear canal when worn, a body portion comprising a second contact surface configured to position behind an anti-tragus portion of the user's ear, and, a retaining member formed of a compliant material, comprising a third contact surface configured to conform to a cymba conch portion of the user's ear, where the body portion and the retaining member are shaped in a way that the second contact surface contacts the anti-tragus portion and the third contact surface contacts the cymba conch portion at the same time, when the first contact surface is already in contact with the outer surface of the ear canal.

Abstract: Media playback devices in accordance with embodiments of the invention are disclosed, including various features of the playback devices such as (but not limited to) the color of the playback devices and the appearance of feet of the playback device.