1. Give off far infrared (light of life) 2. Release anion (air vitamin) 3. Emit bioelectricity (circuit of life) Enjoy healthy life from tourmaline healthcare products:jade tourmaline matress. 1. Tourmaline mattress is made of tourmaline, combined the technology of far-infrared ray.2. It used to keep your helth, far-infrared light wave therapy, warm therapy, etc;3. Using it in the right way, it ...