MediCrystal Classic Far Infrared Amethyst Tourmaline Mats with Natural Crystals and EMF-free Adjustable FIR Heating 86-158°F (30-70°C).
Crystals: Crushed to 2-8 mm 50% of Natural Purple Amethyst and 50% of Black Tourmaline in Red-Violet Tubes Throughout the mat. Some gems are visible through triangle shape heat and sweat-resistant clear PU film window.
Voltage: 110-120V, 60Hz for North America and Japan or 220-240V, 50Hz for Europe and other countries
Amethyst and Tourmaline Isolate 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.
Deep Impactful Crystal Rays are excellent for back pain relief, relaxation, good all-night sleep.