To shift the whole of a device and to provide a user with strong discrimination information by visual sense and sense of touch by providing an actuator between an input device or an output device of information and a installation part and shifting the device.

When a keytop 1 is pressed, its signal is transmitted to an actuator control circuit 14 with terminals 12, 13 at a substrate side. In addition, a similar signal is also transmitted to the actuator control circuit 14 from another input device. Upon receiving the signals, signals to for vertical motion of actuators 5, 6 are transmitted to the actuators 5, 6 with actuator terminals 15, 16 by the actuator control circuit 14. A key case 2 is vertically moved by receiving the control signals and vertically moving movable parts 3, 4 by the actuators 5, 6. In addition, the length of elongation and contraction of the movable parts 3, 4 is variable depending on the signals and the vertical motion of the key case 2 is performed in many stages.