An apparatus for disposition on appendage, such as an arm or leg, is capable of encircling and applying opposing forces selectively thereto. In various embodiments, oxygen ions are implanted to a predetermined depth in a localized region of a semiconductor substrate, and the substrate is annealed. During the continuous transfer period, the client stores in a memory audio data that has been continuously transmitted according to the sequence to be output via a speaker from the server. Various patterns are punched into the cover providing distinguishing decorative characteristics. The context can be passed back to the host for message processing by the host.