This product is an accessory for the BioMat Professional. The Amethyst Pillow does not plug into the wall, and does not produce active infrared or negative ion therapies on its own. However, the Pillow can be warmed up prior to treatment by laying it on the BioMat Professional, while it's also warming up. Once the Pillow is warmed up, it does emit infrared light therapy, similar to the BioMat. The inner foam portion of the Amethyst Pillow can also be removed, to replace with a differently shaped pillow, or to use the crystal rows alone as a hot stone wrap.