This disclosure relates to the use of a content message layer or a mobile device edge technology to render and measure interactive impression messages to a mobile device during a specified time and place and with discretionary control. More particularly, the present invention relates to an automated modeling system that acquires data from entries made into a dialog box. An attachabledetachable operation key for inputting characters or instruction information is disposed so that the key can be attacheddetached with respect to the cellular phone main body. When one end of the conductive member is in contact with a first electrode and the other end of the conductive members in contact with the second electrode, the contactor electrically connects between the first electrode and the second electrode via the conductive member and generates contact pressure against the electrodes when the coil-shaped spring is pressed. Therefore, the waiting time for receiving the image data is reduced, so that the time required for printing the plurality of images can be reduced.