Abstract: A poster with an RF IC tag is adhered to a poster adhering unit. ID information of the poster is read from the RF IC tag with an RF IC tag reader and sent to a control device. By using this tag ID information, the control device acquires detailed information on each of advertisement contents of the poster adhered to the poster adhering unit, from a contents server. As a user points out a position of the advertisement contents to which the user paid attention, the control device detects the pointed position from an output of ultrasonic sensors, and provides the user with the detailed information by using a display and a speaker in a contents reproducing unit.