Abstract: Various implementations include an open-ear headphone, including: an acoustic module including a distal sound-delivery end; a battery housing; and a flexible arm physically and electrically connecting the acoustic module to the battery housing, wherein the flexible arm defines an original resting length and position between the acoustic module and the battery housing, wherein the flexible arm is configured to retain the open-ear headphone on an ear of a user such that the distal sound-delivery end is located in the concha of the ear and the battery housing is located behind the ear, and wherein the flexible arm is configured to be flexed at least along a length thereof such that a space between the acoustic module and the battery housing can be adjusted.

Abstract: A flexible arm that is configured to be located between and physically and electrically connect an acoustic module of an open-ear headphone to a battery housing of the open-ear headphone. The flexible arm defines an original resting length and position between the acoustic module and the battery housing. The flexible arm includes a flexible printed circuit that extends through the entire original resting length of the flexible arm and comprises a conductor that is configured to carry electrical energy between the acoustic module and the battery housing. A first interface structure is coupled to one of the acoustic module and the battery housing. A flexible material encases at least some of the flexible printed circuit and at least some of the first interface structure.

Abstract: A flexible arm that is configured to be located between and physically and electrically connect an acoustic module of an open-ear headphone to a battery housing of the open-ear headphone. The flexible arm defines an original resting length and position between the acoustic module and the battery housing. The flexible arm includes a flexible printed circuit that extends through the entire original resting length of the flexible arm and comprises a conductor that is configured to carry electrical energy between the acoustic module and the battery housing. A first interface structure is coupled to one of the acoustic module and the battery housing. A flexible material encases at least some of the flexible printed circuit and at least some of the first interface structure.

Abstract: Systems and methods for a wireless controller are provided. The wireless controller includes an enclosure having a top and a bottom, each having a substantially circular perimeter, and a side having a height circumferentially around the perimeter of the top and the bottom. A first sensor is configured to detect movement of the enclosure. A processor is coupled to the first sensor and configured to process signals from the first sensor and to send command signals via a wireless interface based at least upon the signals from the first sensor.