Abstract: A skin-contact type terminal system includes a thermoelectric module for cooling or heating in accordance with a polarity of current provided from the skin-contact type terminal, with the temperature of cooling or heating being adjusted according to a level of a voltage provided thereto, and being controlled to maintain its cooling or heating operation for a predetermined time. A control unit senses generation of an alert request signal, supplies the voltage to the thermoelectric module in accordance with the sensed alert request signal so that the thermoelectric module cools or heats in accordance with the predetermined cooling or heating temperature. The control unit controls the thermoelectric module to maintain its cooling or heating operation for the predetermined time.