Babolat Pure Drive Play 2015 : With excellent stability at ball impact, the counter puncher will enjoy the feel of the Babolat Pure Drive Play 2015 tennis racquet, built with rigidity that allows for more precision or power, according to the construction. A reengineered drilling pattern called FSI Technology for Frame String Interaction improves consistency and depth on all shots. This frame is ideal for players seeking the perfect balance between power and feel. Cortex dampening system allows for the unique sensation of power and precision on every shot. Elliptical shape adds resistance against twisting and flexing. Babolat Play app data: Total number of shots. Type of Stroke: forehand, backhand, smash, or serve. Type of Spin: topspin, slice, or flat all for each stroke. Impact Locator: where the ball is making contact with the strings. Pulse: data about your power, technique, and endurance. Play-time (racquet turned on) and Real-time (racquet moving). Shots-per-minute. Best Rally. Features: Set up as a right-handed or left-handed player. Play Pure Drive app and profile are both completely free. Woofer System provides 25% more contact time between the ball and strings, delivering more control and a more comfortable feel. A gravity calculator helps the sensor recognize forehand or backhand strokes. Racquet modifications (like lead tape) may affect results. Memory indicator on butt cap. Water damage resistant (light rain and sweat). Charge holds 6-8 hours of play. Includes USB cable for charging or to download data. Sensor may be affected in under 10° weather or over 180° f.