The Li-Ning Turbo Charging Technology Platform is designed for aerodynamic efficiency. It features an innovative trapezoidal frame construction that energizes the player with extra strong swing speeds and fast reaction times. It's a ideal for quick players with rapid attack and strong defensive skills. Every badminton player wants to be faster. They want to lunge faster, move into defensive position faster and of course smash faster. That's where the speed of the racket comes into play. And when it comes to a speedy badminton racket, Li-Ning has studied every aspect of player mobility to develop its Turbo Charging Badminton Racket Technology. Designed for aerodynamic efficiency, this speedy badminton advantage is built into the racket frame in the form of a trapezoid construction. Because of the design, players reap the benefits of extra strong swing speeds and fast reaction times, energizing them on the badminton court. Turbo Charging is perfect for quick players who implement rapid attacks while also playing strong defense. Four Types of Badminton Fast Playing Styles. DRIVE: For fast players who can switch quickly between offense and defense these rackets feature a stiffer shaft and highly-elastic head. COMBAT: For strong, aggressive players who want to maximize their power, these rackets are designed with a heavier head and higher balance point. INSTINCT: For players who want to combine a lightweight racket with aggressive speed and agility, these rackets have flexible shafts and weigh less than 80 grams. BOOST: For well-rounded, experienced players these rackets are built with a moderate balance point and medium shaft.