Uses the same patented Thumper Percussion Action as the Thumper Maxi Pro Massage to penetrate even the thickest muscles to release tension and fatigue. Its two massage spheres pivot up and down a full 1/4 inch providing penetration to the muscle and fascia. 3 speeds, 30 and 40 Hz. Like all Thumpers, the Mini Pro will ensure the finest quality and reliability. 2 year warranty. 12′ power cord. Weighs 3 lbs. 3 controlled power settings.