a portable radio terminal with an infrared communication function prevents consumption power from increasing when a radio communication function and an infrared communication function are used at a same time . a radio communication function section is judged whether in radio communication or not , and a driving current of an light emitting element in an infrared communication function section . the driving current of the light emitting element for an infrared communication is controlled in accordance with an operation of the radio communication function section , therefore , it is possible to loosen a condition for enabling infrared communication . as to restrictions for outputs from light emitting elements , a driving current of a light emitting element is controlled or plural light emitting elements having respective outputs are selectively driven .