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# CBConnectionEvent

A change to the connection state of a peer.

```
enum CBConnectionEvent
```

## Topics

### Events

[`CBConnectionEventPeerConnected`](/documentation/CoreBluetooth/CBConnectionEvent/peerConnected)

The peer has connected to the local device.

[`CBConnectionEventPeerDisconnected`](/documentation/CoreBluetooth/CBConnectionEvent/peerDisconnected)

The peer has disconnected from the local device.

## Relationships

### Conforms To

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

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

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

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

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

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

---

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