The most technologically advanced tennis racket Babolat Play technology gives you feedback on your game, including power, impact locator & number of strokes Sensors integrated in the base for turning them on/off & using bluetooth 6 hours battery life & 150 hours of memory CDS improves control for the player Elliptic Geometry makes it 20% stiffer to improve resistance to twisting & bending Woofer system gives 25% more contact time between the ball & the string GT technology improves control & feel Headsize is 645cm Grip type is Syntec Pro