VitaliTENS is a transcutaneous electrical nerve stimulation medical device controlled by an application and indicated for the treatment of chronic pain in adults with knee osteoarthritis, in the event of failure of level 1 analgesic drug treatment.It is a non-drug and non-invasive alternative aimed at relieving patients using electrical stimulation delivered by self-adhesive flexible electrodes applied to the skin.VitaliTENS benefits from a patented protocol for placing electrodes and specific stimulation programs to knee osteoarthritis and controlled by a smartphone application.Made in France, VitaliTENS is light, miniaturized, and flexible. It can be worn discreetly.