Its powerful motor, variable speed control and applicator package make the G5™ Pro-Power® a very versatile massager. Directional-Stroking® and power massage are unique features to the G5™ Massage Machines. Directional-Stroking® is a rhythmic, gyratory, stroking motion that produces deep, penetrating forces that act both parallel and perpendicular to the body. The deep-penetrating gyratory forces over-stimulate nerve endings, allowing contracted muscles and muscles in spasm to relax. Continuous variable speed range of 20 to 50 cycles per second. Comes complete with a G5™ Portable Professional Therapy applicator package applicators A, E, F, H, I and 50 medium disposable covers and 50 large disposable covers. Item includes a one year warranty.