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# capabilities

The control capabilities this device supports.

```
let capabilities: [MediaDevice.Capability]
```

## Discussion

Each value in the array describes one operation the device supports, built from a
[`MediaDevice.Capability`](/documentation/NowPlaying/MediaDevice/Capability), such as [`absoluteVolume(_:onChange:)`](/documentation/NowPlaying/MediaDevice/Capability/absoluteVolume(_:onChange:)) or
[`relativeVolume(onIncrement:onDecrement:)`](/documentation/NowPlaying/MediaDevice/Capability/relativeVolume(onIncrement:onDecrement:)). Pass an empty array if the
device exposes no controllable capabilities.

---

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