Earpiece with stabilizing features and related technology

An earpiece configured to be mounted to a user's ear, the earpiece comprising:

• a housing;
• a speaker within the housing;
• an earbud carried by the housing, wherein the earbud is positioned to extend from the housing toward a canal of the user's ear when the earpiece is mounted to the user's ear;
• and
• a protrusion positioned to be at least partially received within a recess at least partially defined by a cymba concha of the user's ear and by an anterior ridge of an antihelix of the user's ear when the earpiece is mounted to the user's ear, wherein the protrusion has a first degree of resistance to deforming in response to a given pressure when the given pressure is exerted against the protrusion via a portion of the recess defined by the cymba concha, and wherein the protrusion has a greater second degree of resistance to deforming in response to the given pressure when the given pressure is exerted against the protrusion via a portion of the recess defined by the anterior ridge.

A stabilizer accessory configured to be mounted to a user's ear to stabilize an earpiece, the stabilizer accessory comprising:

• a shell defining a cavity;
• a window extending through the shell, wherein the window is positioned to allow an earbud of the earpiece to extend from the cavity toward a canal of the user's ear when the stabilizer accessory is mounted to the user's ear;
• and
• resilient members hingedly connected to the shell, wherein the resilient members are configured to bend relative to the shell along respective bending axes when the stabilizer accessory is mounted to the user's ear, and wherein the bending axes are at most 30 degrees off perpendicular relative to an adjacent length of an anterior ridge of an antihelix of the user's ear when the stabilizer accessory is mounted to the user's ear.