A field controlling electrode for providing transcutaneous nerve and/or muscle stimulation to a users body includes a conductive flexible member having a top side and a bottom side. An electrically driven master electrode, in combination with the conductive flexible member, is provided for generating a current distribution in the conductive flexible member and an electrically undriven slave electrode disposed in a spaced apart relationship with the master electrode is provided, for focusing or controlling the generated current distribution over an area of a users body.