The Nexus iSTIM is a revolutionary stimulation system to excite your erogenous zones and increase sexual pleasure to electrifying heights! The system uses a TENS machine (Transcutaneous Electrical Nerve Stimulator) to deliver small electrical pulses into the body via electrode pads placed onto the skin or via the use of various Nexus toys. This high-quality TENS machine has an LCD display and more settings than any other comprable TENS system. The Nexus iSTIM is supplied with specially designed electrode pads but can be used with any of the extra exciting add-ons available, including iSTIM attachments for the Glide, Neo, Excel, Titus and Vibro. Has 2 channels to connect 2 people or 2 toys. Note: this items is only the attachment and does not include the Nexus iStim (item #nxistim), Nexus Glide, Neo, Excel, Titus or Vibro.