Train smarter – and perfect your pacing – with this clever waterproof electronic training device. Featuring a clear LCD display and an adjustable, audible beep, the Tempo Trainer Pro helps you to achieve your ideal stroke rate (and stroke length) for every event. Place underneath your swim cap, attach to your goggles, or use the hands-free clip for dryland sports such as cycling. Replaceable battery. Three customisable modes. Floats in water for easy retrieval.