... vibration machine MJ-1220 1. clean blood vessels and promote blood circulation 2.Body massage Healthy Magnetic vibration machineMJ-1220It is a health machine ... After start, the machine at the state of medium-speed and the way of fixed speed vibration, the vibration intensity can adjust ... socket2 Press "open/close" button, the machine starts to work 3 to change vibration mode by press the mode button, ...