What it is: A mat that combines two powerful healing technologies-infrared and pulsed electromagnetic field (PEMF)-to create the ultimate recovery tool. PEMF grounds you in earth's magnetic field for a full-body reset, while infrared's deeply penetrating heat promotes enhanced blood flow and improved muscle recovery. What it does: Pulsed electromagnetic field (PEMF) therapy emits electromagnetic waves that mimic natural frequencies found in nature, stimulating and encouraging your body's natural recovery process. The benefits of PEMF alone are out-of-this-world (literally, astronauts used it to recover from a debilitating space mission), but even more powerful when paired with infrared's deeply penetrating heat and twenty pounds of healing crystals layered inside the mat, which produces antioxidant negative ions when heated. How to use: Set your PEMF level from 1 to 4 (all levels mimic healing frequencies found in nature). Use the controller to adjust the infrared level to your desired temperature. Select the Negative Ion feature to neutralize free radicals and ignite an even deeper level of healing. Includes mat and power cord/controller 19.5" x 39" 11 lb. PVC/purple amethyst/black tourmaline/textile/detox charcoal/PEMF coils Imported Pop-In@Nordstrom