Arthritis is the swelling and tenderness of the joints. The main symptoms of arthritis are joint pain and stiffness. These pains are caused by inflammation that occurs when the joints are damaged. R1 is great for treating arthritis pain. Additionally, it can provide the strength to move the body and reduce inflammation to halt the progression of arthritis. It offers three vibration modes for muscle relaxation and improved blood circulation. A hot compress helps reduce stiffness and keep the knees warm. The device stimulates muscle blood flow, increases muscle strength, reduces muscle pain, and enhances psychological recovery. Enjoy knee massage on both legs simultaneously. It adapts to the knees, shoulders, and elbows and features removable and adjustable knee straps. EMS pads are also included to massage other body parts.