Modern bows produce amazing arrow speeds, however, they also generate accuracy robbing vibration and game-spooking noise. The BloodSport Zero Vibration Transfer(ZVT) reduces noise by up to an incredible 60% while eliminating most of the shock felt by the shooter. Unlike all other string dampeners and stops, the BloodSport ZVT eliminates noise and vibration before it starts. As the string enters the ZVT brush modules, it travels forward, unencumbered, providing a full power-stroke and top arrow speeds. As the string starts to vibrate, the ZVT's patent-pending brushes decelerate the string, gently returning it to rest without producing unwanted noise and vibration.