FDA Cleared (Medical OTC Grade) : Everyon can use, Recover like a PRO! Variety of Uses : The DOCTOR LIFE Power Refreshing Compression System is intended to improve muscular pain relief and various circulation functions. High Quality Device : 100% made in korea device with strong and durable air pump, Three boots size and extension zippers (L, XL, XXL) for wider, Simple adjustable timer and pressure lever, 110V-120V Outlet (found in most households), Durable anti-scratch case with a built-in handle. Warranty : DOCTOR LIFE stands behind its quality with confidence. We offer our valued customers a 1-Year Warranty on all sleeves and device. (Note: This warranty is only effective if the product is purchased and operated in the US.) Please Note : The DOCTOR LIFE Power Refreshing Compression System is designed for your personal use and is not intended to replace any health professional care. Read all instructions before using this recovery system for the first time.