A wireless handheld device, comprising: a device structure and a handle, the device structure being connected to the handle by a detachable structure, a lithium battery being disposed in the handle, a driving mechanism being disposed in the device structure; the detachable structure is a magnetic type structure; wherein the detachable structure comprises a slot, a connector, a plurality of first contacts and a plurality of second contacts, the slot is fitted with the connector, the slot is arranged on a lower surface of the handle, the connector is arranged on an upper surface of the device structure, wherein each of the plurality of first contacts matches with each of the plurality of second contacts, the plurality of first contacts are electrically connected to the driving mechanism and the plurality of second contacts are electrically connected to the lithium battery, and each of the plurality of first contacts is detachably electrically connected to each of the plurality of second contacts; wherein, a first magnetic structure is disposed in the slot, a second magnetic structure is disposed in the connector, and the first magnetic structure matches with the second magnetic structure; wherein the device structure is an electric iron, and the driving mechanism is a heating structure; wherein the heating structure comprises, as fixably disposed parts in a sequence from top to bottom, a top cover, a middle cover, a pressing plate, a ceramic heating piece, and a bottom plate, wherein the top cover is of a conical shape; an upper end of the top cover extends upward to form the connector; a periphery of the pressing plate is fixedly connected to the bottom plate; a lower surface of the pressing plate rests against the ceramic heating piece; and a lower surface of the ceramic heating piece rests against the bottom plate; wherein the bottom plate is provided with a bottom plate groove, and both the ceramic heating piece and the pressing plate are disposed in the bottom plate groove. a device structure and a handle, the device structure being connected to the handle by a detachable structure, a lithium battery being disposed in the handle, a driving mechanism being disposed in the device structure; the detachable structure is a magnetic type structure; wherein the detachable structure comprises a slot, a connector, a plurality of first contacts and a plurality of second contacts, the slot is fitted with the connector, the slot is arranged on a lower surface of the handle, the connector is arranged on an upper surface of the device structure, wherein each of the plurality of first contacts matches with each of the plurality of second contacts, the plurality of first contacts are electrically connected to the driving mechanism and the plurality of second contacts are electrically connected to the lithium battery, and each of the plurality of first contacts is detachably electrically connected to each of the plurality of second contacts; wherein, a first magnetic structure is disposed in the slot, a second magnetic structure is disposed in the connector, and the first magnetic structure matches with the second magnetic structure; wherein the device structure is an electric iron, and the driving mechanism is a heating structure; wherein the heating structure comprises, as fixably disposed parts in a sequence from top to bottom, a top cover, a middle cover, a pressing plate, a ceramic heating piece, and a bottom plate, wherein the top cover is of a conical shape; an upper end of the top cover extends upward to form the connector; a periphery of the pressing plate is fixedly connected to the bottom plate; a lower surface of the pressing plate rests against the ceramic heating piece; and a lower surface of the ceramic heating piece rests against the bottom plate; wherein the bottom plate is provided with a bottom plate groove, and both the ceramic heating piece and the pressing plate are disposed in the bottom plate groove.