The Mini Pro is a Professional Grade product designed for durability and effectiveness. A quality and performance hundreds of thousands of users have trusted for over 20 years. A strong massage with no work: Thumper Mini Pro does the work, not the user. Its long handle design is perfect for treating others and for self-care at home. You can reach areas like the shoulders, hamstrings, and midback. The Mini Pro is easy to hold and maneuver and over 95% of the output of the unit is directed through the massage spheres eliminating feedback through the handle. Note: For use in North America (120 Volt, 60 Hertz). The unit is equipped with a standard two-prong North American plug.