The ACS Oxygen & Blood Circulation Machine - TIENS is an advanced device recommended by physicians for alternative therapy to enhance oxygen and blood circulation in the body. Known as OBCM, it improves the health of blood vessels, including arteries, veins, and capillaries. Made from high-quality, durable plastic, the device is aesthetically pleasing with a dual-color design. It prevents rheumatism, chronic arthritis, and nerve atrophy, while providing quick relief from muscle spasms and promoting mind-body coordination. The massager features two pace settings with an infrared switch. It is easy to maintain, comes with a 1-year warranty, and includes a meter-long adapter for power supply. For detailed functions, refer to the manual.