This is the OPUMP: a smart breathing trainer that helps increase your lung capacity and athletic performance. It combines with your phone to make exercise more fun with games and guided exercises. The OPUMP also works without your phone. It gives you feedback with lights.
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This breathing trainer has an automatic air flow resistance design and an advanced MEMS sensor. It has a compact design, weighing only 100g. Great for voice performances, athletes, smokers, and anyone who wants stronger lungs.
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