Electric Safe Acupuncture Therapy Infrared Instrument Massager Pen For Full Body

The pen is a monopole current(the nib) output, so the other pole current should be conducted by hands and form circumfluence with the nid of the Electronic Acupuncture Pen, that it will produce electrical pulses, so it is normal to feel a little numbness of the holding hand.

Electric Safe Acupuncture Therapy Infrared Instrument Massager Pen For Full Body