MediCrystal Far Infrared Amethyst Mats with Natural Crystals - Adjustable FIR Heating 86-158°F (30-70°C) and Negative Ion Functions.
Crystals: 100% Natural Amethyst
Voltage: 110-120V, 60 Hz for North America and Japan
Amethyst Isolates and Concentrate Healing Infrared Rays in the most bio-compatible Wavelength 4-16 µm, and emits them up to 8 inches deep into tissues. Warm Stones Naturally Release Negative ions and Far Infrared Deep Impact Heat. Classic Hot Stone Mat brings Vital Natural Forces of Fresh Air, Mountains, Waterfalls, Sun Warmth into your Home just in the Middle of Modern Civilization.