Perhaps one of the greatest advantages of our palm-sized unit is that it’s non- invasive, or needle-free, which makes it very easy to apply. It relies instead on electronic impulses to reproduce the physiological results of traditional acupuncture. This means that the Dolphin Neurostim OTC can be successfully applied by both novices and professionals – whenever and wherever pain strikes. Every unit comes with a concise and easy-to-digest treatment manual.