Card body for a chip card , having a metal main body with two opposite main surfaces , wherein a module opening for receiving a chip module with a coil is already made in the main body or is yet to be made in a module opening zone, and a slot which extends from a circumferential surface of the main body to the module opening or to the module opening zone and which extends between the two main surfaces , wherein a switching device with a switching element and a switching recess for switching a wireless function of the chip card is provided, wherein the switching recess is arranged in contact with the slot and/or inside the module opening or the module opening zone, wherein the switching element is provided in or on the switching recess , wherein the switching element in an off position electrically bridges the slot and/or the coil and/or blocks a magnetic flux in the module opening , and wherein the switching element in an on position electrically enables the slot and/or the coil and/or enables the magnetic flux in the module opening , characterized in that the switching recess is formed in the slot as a cross-sectional contour in relation to a longitudinal extent of the said slot and in that a cross section of the switching element corresponds to the cross-sectional contour, wherein the switching element can be inserted into and removed from the switching recess , wherein the switching element consists of an electrically nonconductive material and in that the cross section of the switching element is larger than the cross-sectional contour of the slot , so that the inserted switching element expands the slot . a metal main body with two opposite main surfaces , wherein a module opening for receiving a chip module with a coil is already made in the main body or is yet to be made in a module opening zone, and a slot which extends from a circumferential surface of the main body to the module opening or to the module opening zone and which extends between the two main surfaces , wherein a switching device with a switching element and a switching recess for switching a wireless function of the chip card is provided, wherein the switching recess is arranged in contact with the slot and/or inside the module opening or the module opening zone, wherein the switching element is provided in or on the switching recess , wherein the switching element in an off position electrically bridges the slot and/or the coil and/or blocks a magnetic flux in the module opening , and wherein the switching element in an on position electrically enables the slot and/or the coil and/or enables the magnetic flux in the module opening , characterized in that the switching recess is formed in the slot as a cross-sectional contour in relation to a longitudinal extent of the said slot and in that a cross section of the switching element corresponds to the cross-sectional contour, wherein the switching element can be inserted into and removed from the switching recess , wherein the switching element consists of an electrically nonconductive material and in that the cross section of the switching element is larger than the cross-sectional contour of the slot , so that the inserted switching element expands the slot . <EOS>