The present invention is constituted by a body, an electric accumulator, an electric connecting wire, an electric quantity display module and an electric current control module. The electric accumulator is connected with the connector, an end of the electric connecting wire is provided with a butting connector which is connected electrically with the connector, and the other end of the electric connecting wire is provided with an electric current transmission element which is installed with a conductive patch. The electric quantity display module is connected electrically with the electric accumulator and the electric current control module is connected with the electric accumulator, so as to control the magnitude and intensity of electric current output in the electric accumulator, and update the electrotherapy mode wirelessly.
