Finis Metronome Trainer Pro

This small submersible device easily attaches to the underside of a swim cap and transmits an audible and adjustable rhythm marking signal, making it easy to identify and maintain an ideal rhythm. With the ability to replace its battery, the life of the Tempo Trainer Pro will be greatly extended. Three different training modes offer maximum customization. The Tempo Trainer Pro includes a clip for out-of-water workouts.