Abstract: An accessory device and a handheld device may be synchronized by forming a communication link between the handheld device and the accessory device. The handheld device includes a plurality of functions and the accessory device is configured to operate a subset of the plurality of functions. Each of the plurality of functions of the handheld device includes executable program code, content data files and functional setting information. The executable program code, content data files and functional setting information is transferred for at least one of the plurality of functions of the handheld device to the accessory device. The communication link between the handheld device and the accessory device is disconnected. The subset of the plurality of functions is operated on the accessory device using the transferred executable program code, content data files and functional setting information from the handheld device after disconnecting the communication link between the handheld device and the accessory device.

Abstract: An accessory device and a handheld device may be synchronized by forming a communication link between the handheld device and the accessory device. The handheld device includes a plurality of functions and the accessory device is configured to operate a subset of the plurality of functions. Each of the plurality of functions of the handheld device includes executable program code, content data files and functional setting information. The executable program code, content data files and functional setting information is transferred for at least one of the plurality of functions of the handheld device to the accessory device. The communication link between the handheld device and the accessory device is disconnected. The subset of the plurality of functions is operated on the accessory device using the transferred executable program code, content data files and functional setting information from the handheld device after disconnecting the communication link between the handheld device and the accessory device.

Abstract: A personal listening device, such as an earbud or earphone, includes a housing, a speaker in the housing to provide sound output and a sensor to detect mechanical input applied to the housing, such as tapping or squeezing, to provide a desired signal and/or function response and method. The speaker may be used as the sensor along with a filter to sense the expected mechanical inputs while separating other sounds normally produced by the speaker.