To stabilize the amount of vibration by operating a pair of magnetic vibration parts in response to a magnetic field being generated by a magnetic field generation part with a support part as an axis.

In a device, a post 30 toward the upper portion of a case 10 from an area near the center of the bottom surface of the case 10 for covering the entire device is provided, and magnetic field generation devices 40 and 50 are fixed near both the left and right ends sandwiching the post 30 on the bottom surface of the case 10. Also, a vibration generation body 20 is fixed near the center of the post 30 and moves due to the operation of a magnetic field being generated by the magnetic field generation devices 40 and 50. However, magnetization regions at both ends have nearly identical magnetic force and the entire vibration generation body 20 is configured in a shape and weight where it is nearly symmetrical at both sides. Then, the amount of vibration of the vibration generation body 20 is controlled by a pulse voltage that is applied to the magnetic field generation devices 40 and 50, thus obtaining stable vibration without causing scattering of the amount of vibration due to each device if the pulse voltage to be applied to the magnetic field generation device is constant.