Abstract: An IC card includes: a rectifying circuit; a register section in which a plurality of setpoints related to the output voltage of the rectifying circuit are set; a voltage level detecting circuit configured to detect the output voltage level of the rectifying circuit on the basis of the setpoints set in the register section; a plurality of transistors for load modulation to be made valid or invalid according to the output voltage level detected by the voltage level detecting circuit; and a control section configured to generate transmission data according to reception data received by a receiving section and supply the transmission data to the plurality of transistors for load modulation.