Card body for a chip card, having a metal main body with two opposite main surfaces (12, 13), 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 (12, 13), 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 (12, 13), 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 (12, 13), 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.