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Heart rate drops out

If voice prompts are enabled, you should hear "heart rate detected" or "heart rate not detected" while in a fitness app or the Bose Connect app. If your heart rate keeps dropping out, try these steps:

Make sure the left earbud fits securely in your ear. You may need to try a different size StayHear+ Pulse tip

Clean the heart rate sensor on the left earbud

Close and relaunch the fitness app

Power the headphones off and then on

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