The Quantum 101 PEMF pen probe generates a cone-shaped magnetic field with the highest intensity at the point of the pen This Pen applicator is also equipped with a Laser Soft Light The light pulses at the same frequency as the Quantum 101 signal generated by the controller The magnetic field-enhanced light allows for deeper penetration into the tissue Primary Applications: Small Joints (fingers, toes, elbows and wrists) Head Area (eyes, ears, jaw, TMJ and nasal cavity) The Quantum 101 Pen Applicator is effective at breaking up cycles of localized pain. The pen is commonly used in conjunction with acupuncture and for relief from dental pain.