A remote controller allowing a user to change settings is provided. The remote controller includes a touch panel, a control circuit, a screen display memory, a setting data memory, a control data memory, an infrared transmission unit, and a battery. The control circuit includes a screen-display control circuit for displaying an image provided in advance for controlling the operation of a specific apparatus, a pressed-area detection circuit for detecting pressing in the display area of touch panel, an instructed-operation detection circuit for detecting the instruction of an operation, a display-data generation circuit for generating image data for displaying icons in the display area of touch panel, and a control-signal generation circuit for generating a signal for controlling the operation of the apparatus.