“On the second day of Christmas, my True Love gave to me,
two tempo trainers“
Underwater metronome with audible tempo beep. The small, waterproof device easily secures beneath a swim cap and transmits an audible tempo beep.
- Personal Pace Coach, Tempo adjustable by 1/100 of a second
- Small convenient size makes it easy to secure beneath a swim cap or goggles
- Auto shut-off feature saves battery life, replaceable battery