According to one embodiment, the present invention relates to a method and a system for implementing a card product or access mechanism with multiple relationships with an issuing entity where each relationship may be defined by one or more sets of rules that are customized for a particular customer. The method for equalizing audio includes detecting the distance between a speaker mounted in a video apparatus and a reflective surface, and equalizing an audio signal to be output from the speaker based on the detected distance. The casing sections are made up of not less than two sections and enclosing a hosing space, and members for securing the housing space thereby.