1.Micro-computerized controlling system with 4 vibrators.2.Different Massager modes are available: kneading,Tapping, Shiatsu,Vibration.3.To relieve lumbar discomfort and backaches4.It has assistant cure effect upon chronic strain of lumbar muscles.5.To alleviate pains caused by menstruation6.To relieve and relax fatigued back and lumbar muscles after long time of office work.7.Convenient to use at home and office with a reliable AC 220V.8.Available nylon fabric & PU leather