Earpiece positioning and retaining

An earphone comprising:

• an acoustic driver that converts applied audio signals to acoustic energy by moving a diaphragm along a first axis;
• a housing containing the acoustic driver, the housing including a front chamber acoustically coupled to the acoustic driver and a nozzle acoustically coupled to the front chamber, wherein nozzle extends the front chamber towards the user's ear canal along a second axis that is not parallel to the first axis;
• and
• an ear interface comprising:
• a body portion that occupies the lower concha of a user's ear when worn by the user,
• an outlet extending from the body and into at least the entrance of the user's ear canal when worn by the user,wherein the outlet at least partially surrounds the nozzle of the housing, and
• a leg formed of a compliant material, wherein the leg applies an outward pressure to the antihelix of the user's ear along at least a portion of a length of the leg when the ear interface is worn by the user.

An earphone comprising:

• an acoustic driver that converts applied audio signals to acoustic energy by moving a diaphragm along a first axis;
• a housing containing the acoustic driver;
• and
• a removable ear interface comprising:
• a body portion that fits beneath the tragus and anti-tragus and occupies the lower concha of a user's ear when worn by the user,
• an outlet extending from the body portion and into at least the entrance of the user's ear canal when worn by the user, wherein the outlet extends towards the user's ear canal along a second axis that is not parallel to the first axis, and
• a leg extending from the body portion and terminating at an extremity, wherein the leg is formed of a complaint material and applies an outward pressure to the antihelix of the user's ear along substantially the entire length of the leg when the ear interface is fit into the user's ear, and the extremity of the leg seats at the end of the anti-helix under the base of the helix of the user's ear.

An earphone comprising:

• an acoustic driver having a sound-radiating surface;
• a housing containing the acoustic driver;
• and
• a removable ear interface comprising:
• a body portion that fits beneath the tragus and anti-tragus and occupies the lower concha of a user's ear when worn by the user,
• an outlet extending from the body portion and into at least the entrance of the user's ear canal when worn by the user, and
• a leg extending from the body portion and terminating at an extremity, wherein the leg is formed of a complaint material and applies an outward pressure to the antihelix of the user's ear along substantially the entire length of the leg when the ear interface is fit into the user's ear, and the extremity of the leg seats at the end of the anti-helix under the base of the helix of the user's ear.