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# leftEarSensitivity

The sensitivity of the left ear.

```
@NSCopying var leftEarSensitivity: HKQuantity? { get }
```

## Discussion

This object uses [`decibelHearingLevel()`](/documentation/HealthKit/HKUnit/decibelHearingLevel()) units to measure sensitivity in attenuated dB from a baseline of 0 dB.

---

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