MediCrystal Far Infrared Amethyst Tourmaline Mats with Natural Crystals - Adjustable FIR Heating 86-158°F (30-70°C), Bio-Stimulation and Negative Ion Functions.
Crystals: 75% Amethyst, 25% Tourmaline, crushed Natural Crystals
Voltage: 110-120V, 60 Hz for North America and Japan
Amethyst and Tourmaline Isolate and Concentrate Healing Infrared Rays in the most bio-compatible Wavelength 4-16 µm, and emit them up to 8 inches deep into tissues.
Warm Stones Naturally Release Negative ions and Far Infrared Deep Impact Heat.
Some of the V-mats and belts referred to as "bio-magnetic" 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.
Also, please check for our Non-Heating PEMF-only V-mats with crystals. They have the same sophisticated PEMF function as the heating mats.