This product is manufactured and developed upon the human health; microcomputer controlled 9 vibration programs with 5 strong anti-interference magnetic vibration motors. Vibration massages nerve system, acupuncture points and muscles for human shoulders, back, waist, and thighs. Particular 揙rientation? 揟imer?and 揝trength?functions enhace blood circulation; improve metabolism, relief muscle pain and fatigue. It抯 suitable for home and car, artistic appearance, low power consumption, safe and reliable, an ideal family choice to improve health.