Abstract: This invention includes an electronic accessory having a single button that actuates all of its control features. In one embodiment, the accessory is a MP3 player wherein songs are stored on a multimedia card. Once the card has been loaded an inserted, the MP3 player is coupled to an energy source. In a preferred embodiment, the energy source is preferably a cellular telephone. After coupling, all of the functions of the MP3 player are controlled with a single button. In a preferred embodiment, power is actuated by pushing the button for one second. Volume is adjusted by toggling the button laterally. Tracks are selected by pushing the button quickly while power is applied. Power is turned off by depressing the button for two seconds or more.