MediCrystal Far Infrared Amethyst Tourmaline Mats with Natural Crystals - Adjustable FIR Heating 30-70°C, Bio-Magnetic, and Negative Ion Functions.
Crystals: 75% Amethyst, 25% Tourmaline, crushed Natural Crystals
Voltage: 220-240V, 50 Hz for Europe, Asia, and other countries with this voltage
Amethyst and Tourmaline Isolate and Concentrate Healing Infrared Rays in the most bio-compatible Wavelength 4-16 µm, and emit them up to 15-20 cm deep into tissues.
Warm Stones Naturally Release Negative ions and Far Infrared Deep Impact Heat.
European Voltage V-mats and belts additionally feature the PEMF (Pulsed Electromagnetic Fields) function with a range of ultra-low frequencies manually adjustable between 1 and 30 Hz. Alternatively, you can select 1 of 13 automatic programs that last from 1 to 8 hours.