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.