We review the Finis Tempo Trainer Pro
This tiny gadget can unlock the potential in your swimming. Simply set your desired pace, pop it under your swimming cap or goggle strap and it’ll beep to help you keep rhythm while swimming. The idea behind the Tempo Trainer is that somewhere between a fast turnover and a long stroke length, you’ll find the tempo that gives the best efficiency for your swimming style. The Pro comes with the standard single and triple-beep modes of the regular version, but with an added, extra-easy single beep mode for strokes per minute. You can also change the battery on the Pro and the unit comes with a clip so you can optimise your running cadence too.