a vibrator of the present invention comprises a coreless coil , a driver including a magnet inserted in the coreless coil , a yoke for pinching the coreless coil and facing the magnet , and a top plate , suspensions for carrying resiliently the driver . the driver is reciprocated in an axial direction of the coreless coil by applying an alternate current to the coreless coil to generate vibrations . the vibrator can be miniaturized without increasing a cost and has a good rising of vibrations .