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# MTRClusterContentAppObserver

Cluster Content App Observer
This cluster provides an interface for sending targeted commands to an Observer of a Content App on a Video Player device such as a Streaming Media Player, Smart TV or Smart Screen. The cluster server for Content App Observer is implemented by an endpoint that communicates with a Content App, such as a Casting Video Client. The cluster client for Content App Observer is implemented by a Content App endpoint. A Content App is informed of the NodeId of an Observer when a binding is set on the Content App. The Content App can then send the ContentAppMessage to the Observer (server cluster), and the Observer responds with a ContentAppMessageResponse.

```
class MTRClusterContentAppObserver
```

## Relationships

### Conforms To

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`Hashable`](/documentation/Swift/Hashable)

[`CVarArg`](/documentation/Swift/CVarArg)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`Equatable`](/documentation/Swift/Equatable)

### Inherits From

[`MTRGenericCluster`](/documentation/Matter/MTRGenericCluster)

---

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