A device and method for aiding an improvement of a golfer's swing with the goal of teaching the golfer to keep the golfer's head down until a fraction of a second after making contact with the golf ball. The golfer loads a customizable app into a smartphone placed on the ground a short distance from the golf ball which app flashes a symbol or color on the touch screen of the smartphone a preset time after detecting the sound of the club impacting the ball. The eyes of the golfer are trained on the smartphone forcing the head to remain looking down until observing the flashing symbol or color upon which the head is then turned upward to observe the path of the struck golf ball.
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