It is based on the writings of Hulda Clark who designed a "zapper" that will basically kill the bad fungi, parasites, virus or bacteria in your body by reversing their polarity. She wrote "Cure for All Cancers". It is pretty complex and there are many others that have continued and improved on her writings.
I bought mine from OrganiseAfrica who also carries many organite products that I also use. I felt the one they offered was most economical and effective. I sleep with it on my foot in a sock at night. It is basically an electrical current that runs through your body that uses a 9 volt battery. The info at Organise Africa is really good.
Tesla said the key to the universe is energy, frequency and vibration and this basically uses frequency to heal. Homeopathy and essential oils are considered vibrational healing modalities because everything on the earth vibrates and has a frequency and the key to these modalities is using the right remedies which works because they match the frequency of certain organs or systems. Actually food and herbs heal or nourish in the same way. The earth vibrates at 528 Hertz and you can also find music on you tube to listen to that is good for sleep and healing. It is fascinating how our bodies and the entire earth works. God's wonders are so complex and it is exciting to be able to understand the how and why of things. God speed on your journey.