Pain Gone fast drug free therapy is a handy, fast working device which uses a low frequency electrical charge produced by crystals. A 30 second self applied treatment on the point of pain activates the body's natural defence mechanism against pain. Completely natural, Safe & simple to use, No known side effects, No leads, pads or batteries, Works over clothing, can be used for minor, chronic & acute pains, 12-15 month average operating life.