Pros are nearly identical close to contact. The racquet face and swing path they create at this vital moment are what allows them to consistently hit heavy, penetrating groundstrokes. The Beep Coach and Contact Trainer gives auditory feedback when creating this optimal swing path and racquet face. If you feel like you can’t swing out and keep the ball in, or like your strokes are just inconsistent and require too much timing then the Beep Coach and Contact Trainer will get you hitting better than you ever thought possible.