The Echo release features Scott's new HyperJaw design. Scott engineers spent hundreds of hours to develop and test dozens of geometry configurations. The end result is a never before seen configuration in archery releases. The independent jaws operate in perfect synchronization with one another. This removes any lateral torque that may come from inconsistencies in shooting form. The asymmetrical design delivers unmatched efficiency in the jaw opening response. The Roller Trigger System (RTS) provides a silky smooth trigger action.