Electrastim Flick Duo Stimulator PackA revolution in electro stimulation technology the Electrastim Flick Duo Stimulator Pack not only has 8 built in dual channel programs including escalating patterns but is also able to stimulate in rhythm with the movements of the control unit. Whether you simply want to add your own stimulation beat or want to stimulate in direct sympathy with your own wrist movements during masturbation, this patent pending feature will be like nothing you have