A universal module capable of being removably coupled to each of a plurality of distinct products for demonstrating a functionality is described. In the universal module an activation switch is operatively coupled to a DC power source. An external electrical connector is operatively coupled to the DC power source and the activation switch. An external electrical connector is configured to removably couple the universal module to an external circuit of one of the plurality of distinct products. The circuit has an integrated circuit that is operatively coupled to the DC power source, the activation switch and the external electrical connector. When the external electrical connector is coupled to the external circuit and the activation switch is activated, the integrated circuit outputs a voltage from the DC power source through the external electrical connector to enable a functionality of a coupled product for a predetermined period of time.