Nexus has called this the Stroker technology. It is the "come hither" motion that is stimulating your most tender spot.
This new type of stimulation is absolutely unique in the sex toy market. The movements are directly transferred to the prostate. Because this is the most sensitive part of the anus, it is also referred to as the male G-spot
An orgasm caused by stimulation of the prostate is commonly described as deeper and more intense. In short, a powerful climax with the Nexus Sparta.