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# AVAudioSession.RouteSelection

Constants used to define the active route selection.

```
enum RouteSelection
```

## Topics

### Constants

[`AVAudioSession.RouteSelection.none`](/documentation/AVFAudio/AVAudioSession/RouteSelection/none)

No route is selected.

[`AVAudioSession.RouteSelection.local`](/documentation/AVFAudio/AVAudioSession/RouteSelection/local)

The local device is selected.

[`AVAudioSession.RouteSelection.external`](/documentation/AVFAudio/AVAudioSession/RouteSelection/external)

An external device is selected.


---

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