The invention relates to an electrode arrangement (1) for applying a transcutaneous electrical stimulus to the surface of a portion of the human ear. The electrode arrangement comprises a retaining element (3) mountable on or in the ear and also at least one electrode (4, 5), which is arranged in an electrode carrier (6). In order to enable the electrode arrangement to be applied easily and comfortably to the ear, and to affect hearing as little as possible whilst the electrode arrangement is being worn, according to the invention the retaining element (3) comprises a linear guide (7), in which a retaining rod (8) is arranged so as to be linearly displaceable in the direction of a longitudinal axis (L) of the retaining element (3), wherein the electrode carrier (6) is arranged on the retaining rod (8).