Improve the Smash Power with HB Shaft Technology Li Ning worked with professional players and collected the real time data in order to insure the proper information flow. Based on study and trials, Li Ning has improved the bending strength of Racket shaft and gives best in class elastically. With HB shaft player will get best elasticity which improves the power of badminton smashes. Li Ning Sonic 109 is made with HB Shaft Technology which gives better bending strength to racket shaft thus gives improved badminton smash power. Sonic 109 comes in blue color which black color graphic is provided. It is medium flex racket which will provide you better flex and better control over shots. Weight of the racket is W3 (86 to 89 GMs) with S2 Grip Option. Generate More Speed with Air Stream System Li Ning Sonic 109 is developed with air stream system in which frame beam is designed to reduce the excess air resistance so that racket can generate more racket swing. With this technology, racket swing speed is 3.1% faster as compare to tradition badminton racket. With Improved swing speed, badminton player can effectively place the drop shots, cross corner drop shots and fast drive shots. Moreover it gives added advantage in returning the shuttle to opponent badminton court. Improved Sweet spot by DOF (Dynamic Optimum Frame) Sweet spot is considered as an area where player get maximum power. Badminton players always want to make a shuttle contact at sweet spot. If player will get enlarged sweet spot then it will be a added advantage for them. Li Ning Sonic 108 is developed with Dynamic Optimum Frame technology which gives enlarged sweet spot results into more hitting area for badminton player.