The invention relates to an electrode arrangement for applying of a transcutaneous electrical stimulation stimulus onto the surface of the human ear. A holding element is attached to the ear. At least one electrode is arranged on an electrode carrier and the electrode carrier is arranged on a supporting rod. The holding element has a linear guide in which the supporting rod is arranged linear movable in the direction of a longitudinal axis (L) of the holding element. A latching mean is arranged between the linear guide and the supporting rod, so that the supporting rod can be latched relatively to the linear guide along the longitudinal axis (L) in predetermined relative positions. The latching means has a rack shaped contour on the supporting rod which extends into the direction of the longitudinal axis (L) of the holding element.