To obtain the stable operation of a motor by providing a switch for operating or stopping the motor and turning the switch ON/OFF regardless of the touching action of male and female bodies.

This vibration unit for local stimulation is constituted so that a ring part, in which the privates of a male are inserted, is provided to a support consisting of a soft elastic material in an almost right-angled direction and vibration is applied to the side surface of the ring part by the vibrator attached to the support. The vibrator is held between male and female bodies in its diametric direction and arranged so as to apply a vibration of the side surface of the ring body by the leading end of the vibrator. Further, the vibrator has a battery and a vibration motor in its main body and also has the switch located between the battery and the motor to operate and stop the motor. The switch can be turned ON/OFF regardless of the touching action of male and female bodies.