Vilpory Estim Sex Electro Shock Set Electro Stimulation Patch for Electric Shock Nipple Clamps Vacuum Cup Sex Toys for Tens Sitimulation Amazon.com: SSI Japan Nipple Cup USB Charging Dome Breast Massage Electric Shock Nipple Clamp Clip Toy Electro Stimulation Breast. Perfect for beginners and those new to electro sex, these spring loaded clamps plug into the electro power unit and provide a thrilling e stimulation. Choose a setting on the power unit, adjust the intensity with the control and go from a sensuous tingle to a throbbing tap in seconds. Switch between SLOW or FAST to control the frequency of the shock, or adjust the dial to control the strength of the shock. The control unit sends electrical impulses to the clamps. This set includes 2 x nipple stimulator and 1 x control unit. Please note: This kit is not suitable to use on the following: Persons with a pace maker Persons with epilepsy or a neurological disease Persons who are pregnant Persons with heart disease Persons who are driving or operating equipment Near any metal objects such as piercings, jewellery, or metallic IUD's