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A Tempo Trainer is a small electronic tool that produces signals like beeps, vibrations, or tones at regular intervals. The main purpose is to help you maintain a steady rhythm during practice. Imagine a personal coach who constantly reminds you of your pace without speaking. That is exactly what a Tempo Trainer does. These devices are waterproof, lightweight, and easy to carry. For swimmers, the trainer can be placed under a swim cap or attached to goggles. For runners or gym users, it can be clipped to clothing. Musicians also use it as a metronome to keep timing correct. The idea is simple: once you set the interval, the device keeps repeating the signal, and you follow it.
