Introduction of tourmaline self-heating protective gear

"tourmaline self-heating protective device" is a new type of health product with tourmaline as the core and nano-biological functional materials. The self-heating protective device has the dual functions of thermoelectric and piezoelectric, and vibrates with the human magnetic field, and continuously releases heat energy, negative ions and far-infrared light waves through human energy. Long-term use, removing blood stasis and relieving pain, increasing the body's endurance, relieving joint strain and improving joint bone aging.