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# outputVolume

The systemwide output volume set by the user.

```
var outputVolume: Float { get }
```

## Discussion

This property returns a value in the range `0.0` to `1.0`, with `0.0` representing the minimum volume, and `1.0` representing the maximum volume.

Only the user can directly set the system volume. Provide a volume control in your app, using <doc://com.apple.documentation/documentation/MediaPlayer/MPVolumeView>, to provide the interface to adjust the system volume.

You can observe changes to the value of this property by using [Key-value observing](https://developer.apple.com/library/archive/documentation/General/Conceptual/DevPedia-CocoaCore/KVO.html#//apple_ref/doc/uid/TP40008195-CH16).

---

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