Dr Rock MagicPad Pro – adopts a new heat injection technology, natural red needle stone combined with graphene heating cloth to generate heat, human body safe USB-C PD 65W low voltage input, waterproof, fireproof and electric shock-proof. Apply cutting-edge technology PEMF and terahertz, double the energy, give you different warm physical therapy care, and bring you instant relief and relaxation in just 15 minutes