Abstract: Device with an electrode arrangement with a plurality of electrodes for measuring electric signals on a face surface of a head of a user and behind an ear of the user; and with a carrier structure. The carrier structure at least partially defines a relative position of the electrodes to one another, and the carrier structure is shape-stable within a tolerance range without external force exerted by a user and deformable under external force exerted by the user, in order to change a distance between two adjacently arranged electrodes and/or to area-comprehensively adapt to face and head structures. The carrier structure is configured to position at least a part of the electrode arrangement on the face surface and behind the ear.