The Volas EMS Foot Massage Pad with Pulse Technology listing says EMS microcurrent technology, intelligent pulse massage, acupressure foot stimulation, portable home therapy and easy one-touch operation. There is one default variant.
Home therapy and acupressure are listing phrases, not a diagnosis or a proven medical result. Do not use this page as clinical advice. The first photo is a black square pad with two foot outlines and a top button.
See the Volas EMS foot pad.