Abstract: A device for improving the mechanics of a golfer's swing which is attached to the golf club and adjacent to the grip, and which emits a continuous audible signal so long as the device is subjected to at least a predetermined centrifugal force which is generated by swinging the club. The device includes a battery, buzzer and switch which is spring biased to force the switch open. The spring is compressed by the centrifugal force generated by swinging the club to allow the switch to close and activate the buzzer. The spring may be adjustably prestressed to vary the amount of centrifugal force needed to close the switch.