Wireless, wearable audio devices and methods for assigning position and operational controls. Wireless audio devices or earbuds are described that are provided as a pair in which both audio devices are physically substantially identical. In use, the audio devices are assigned a right or left position associated with the respective ear of the user in which they are to be disposed. Control surfaces are similarly assigned to provide particular control functionalities on a particular side of the user. Master and slave designations are provided and may be swapped based on a battery status of the respective audio devices. Battery usage and the duration of available use of the pair of audio devices may thus be maximized.