The Head I.S18 Chip System is the most technologically advanced racquet ever made.  It is ultra light, powerful, and reduces much of the shock and vibration that can lead to arm problems.  The original price was $500 and there's a limited amount of these racquets available...take advantage and pick one up!! 

According to Head, the ChipSystem eliminates 50% of the shock and vibration, so it never reaches the handle or the player. Piezoelectric material called Intellifibers embedded in the racquet's throat generate an electrical current upon ball impact. The current is carried via a circuit to a computer chip located inside the handle.  The computer chip boosts the current and sends it back, out of phase, to the Intellifibers. This 'out of phase' current causes the Intellifibers to counter the motion occurring in the racquet, thus reducing vibration. The entire process takes 2 to 3 milliseconds.