?The HEAD Geo Speed Tennis Racquet delivers increased power and touch to help you improve your game. This Tennis racquet provides extraordinary power, precise touch, and lightweight stability in an oversized frame. Geo power Technology uses the latest data to optimize the geometry of the shaft, which combines with stiffness, weight, and aerodynamics to create a unique frame. A frame that transfers more energy to the ball, giving you the ultimate power potential. ?(Geo Power Technology): This Technology uses the latest data to optimize the geometry of the shaft, which combines with stiffness, weight, and aerodynamics to create a unique frame. An optimized geometry of the shaft for ultimate power and increased stability for added control.