The Powerbox Set provides electro sex stimulation when connected to one of the electro sex toys. It has two channels, is bi-polar and has an easy to read LCD display. It also comes with two lead wires, three AAA batteries, four self-adhesive gel electrodes and two electrode holders. Select settings including strong, weak, acupuncture, massage, cupping, scrapping and manipulation. It also allows you to select a time period for your stimulation.