FINIS Tempo Trainer Pro

The small, waterproof device easily secures beneath a swim cap and transmits an audible tempo beep. Adjustable tempo offers the ability to identify and maintain an ideal pace. Now with the option to replace the battery, the Tempo Trainer Pro will last multiple lifetimes. Three different training modes offer ultimate customization. The Tempo Trainer Pro includes a clip for dryland exercise.
FEATURES
Provides an audible beep loud enough to hear in and out of the water
Tempo adjustable by 1/100 of a second
Small convenient size makes it easy to secure beneath a swim cap or goggles
Tested to perform at a depth of 10 meters
Auto shut-off feature saves battery life