The Tempo Trainer acts as a personal pace coach to elevate swim training and maximize performance in all of the four competitive strokes. The small waterproof unit attaches to a swimmer's goggle or cap and transmits an audible beep. This audible cue can be adjusted to help develop consistency of stroke rate and stroke cycle as well as to identify and distinguish between optimal training and race paces. Further, because of the simplicity of the device, the benefits and uses of the Tempo Trainer go beyond the pool and are only limited to the coach's imagination.