Tense calves? Swollen feet? Suffering from a sports injury? The Dr. Ho Circulation Promoter provides relief for tired or painful feet and legs. Not a big fan of a firm massage? Because the foot massager has 10 resistance levels and 3 massage options, you can simply choose what you like. Do you want to massage a specific spot? Use the massage pads, which you can simply connect to the remote control. Catching some Zs during a massage isn't a problem. If you set the massage time in advance, the device switches off automatically afterward.*The device isn't suitable for people with heart problems, heart rhythm disorders, a pacemaker, or Implantable Cardioverter Defibrillator.