An electrical rechargeable battery having positive and negative electrodes arranged in a housing with separators between them, and having an electrolyte, at least one end pole is surrounded by a contact protection device in the form of a wall which surrounds the end pole, can rotate freely and is composed of insulating material. A monitoring area is regulated on the outside of the projection area of the screen. The tuning element has an electromagnetic coupling to the basic structure of the resonator. Thus, only the client apparatus, to which an authorization for the normal use, is allowed to reproduce the content data in a normal mode with no reproduction function limitation on the basis of the second management information. Pharmaceutical compositions and methods for treating such disorders are provided, as are methods for using such ligands for detecting GABAA receptors .