I am the customer who purchased two ______ zappers a few months ago from you for use in Sicily ... Just for your interest, here is how I use the zapper: I have a problem with my vertebrae, associated with my severe scoliosis. My back is always in pain which I've lived with all my life. With the zapper, I sit my bum on the copper plate and with the other copper plate I place it on my spinal section where the problem is. I feel the tingly electrical pulses and even after a full days work on the farm (and a thoroughly sore back), when I zap in the evenings, I wake up with no pain, swelling or tenderness. Even if it's only psychosymatic, this sure beats pumping myself with aspirin and painkillers. (and the associated long-term side effects on my body) ... Byron Sept. 2, 2006