DESC: Health and Beauty Belt Massager with Foot Massager This device not only helps to develop muscles but also improves blood circulation. The high-frequency vibrating wave can efficiently target areas with excess fat. Two-way massaging belts can cover two body areas at once or allow two users to exercise at the same time. With a patented 5-speed system, it meets the requirements of all ages to choose either the massaging or body slimming effect. First time users or the elderly are recommended to use the slow speed at the beginning, and then the fast speed later to prevent losing balance during use. The Sunpentown Health and Beauty Belt Massager's belt unit has 9 different height adjustments to accommodate a wide range of user heights. No matter how tall or petite you are, the Sunpentown Health and Beauty Belt Massager an be adjusted just for you. 5-speed Vibrating Wave System: 1st wave - Crushed Wave 2nd wave - Slimming Wave 3rd wave - Strengthening Wave 4th wave -