Painmaster MCT Patch is a revolutionary Micro Current Therapy (MCT) device that is drug free, non-invasive and proven to control pain and promote healing. Patented and approved by the FDA. Our patch conveniently goes everywhere you go when you apply it to the source of the pain for continuous effective treatment. The Painmaster Patch can be worn under clothing and during everyday activities, sports and exercise. Easy application takes just a few seconds. Micro-current therapy is helpful in targeting treatment for multiple areas of pain and releasing muscle tension. The internal power supply allows up to 300 continuous hours of use without side effects.