GG400 - Upper Back, Neck, Shoulder Heating Pad 220V 240V 50 Hz, NOT for USE in America! The Norstar Heating Pad For Neck, Shoulder & Upper Back can help ease pain in joints, muscles, and soft tissues, reduce stiffness in the muscles and joints. This is a form of heat therapy, or thermotherapy. Incredibly Soft Fabric, Machine Washable 220V: Not Suitable for Use in America! Multiple Temperature Settings: Fastly heats up to reach the selected temperature, maintains it constantly.