Sunray Dr. Far Infrared Heating Donuts Pillow, USB 5V Code, 3 temperature Settings Auto Off Pain Relief Pillow for Hemorrhoid, Prostate, Post Natal, Post Surgery, Period Pain[Easy Cleaning] The convenience of our removable machine washable, cotton cover, makes it easy for you keep your pillow nice and clean at all times. [Safe] Smart Controller with Timer and Temperature settings, Auto shut off. DC 5V output, no risk of electric shock, which is definitely safer than the traditional electric pads (AC 110V). Using EMI Shielding patch help protect electronics from electromagnetic interference. [Easy to Use] USB Port with 5V output, just connect to any functional USB port, adapter. It works everywhere with a seat, such as, the, plane, bus, car, wheelchair, home or office chair. Just take it along to wherever needed. [Pain Relief Comfort] Stop the suffering of your coccyx, pelvic and lower back, due to any kind of conditions, Hemorrhoids, prostate, pregnancy, anal fissures, pelvic floor pain… with the Cozy donuts pillow, sitting will finally be comfortable again, in a simple natural way. [IR Therapy] Infrared light penetrates deep into your body (0.7-2.7 inches) and boosts local blood circulation, which brings more healing nutrients and pain-relieving components to all the way to the inner layers of your skin, to your muscles, nerves, and bones. infrared light therapy is a safe, drug-free and effective method for long-lasting pain relief and injury-healing.