DR-HO'S Triple Action Back BeltImproving on standard back support belts, DR HOS Triple Action Back Belt uses three distinct pain relief technologies to deliver powerful, drug free, non invasive back pain relief. Powered by DR HO'S bestselling Pain Therapy System TENS device, the belt works by applying electrical nerve stimulation to the surface of the skin near the site of the pain. Improving on other TENS devices on the market, DR HO'S TENS devices use TENS in conjunction with