Power Breathe K3 - Bicycling Australia

The Power Breathe K3 describes itself as ‘the world’s first intelligent digital breathing trainer’. It is designed to increase breathing muscle strength and endurance to improve fitness and reduce breathlessness during high-intensity activity. Basically, it promises to improve your sporting performance by strengthening the muscles you use to suck in the big ones … and all by spending just a few minutes each day breathing into an automated mouthpiece. More

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.com : POWERBREATHE Kinetic K3 Breathing Trainer (PBK3) : Sports & Outdoors

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