<!--
{
  "availability" : [
    "iOS: 10.0.0 -",
    "iPadOS: 10.0.0 -",
    "macCatalyst: 13.1.0 -",
    "macOS: 10.13.0 -",
    "tvOS: 10.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 3.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CoreBluetooth",
  "identifier" : "/documentation/CoreBluetooth/CBManagerState",
  "metadataVersion" : "0.1.0",
  "role" : "Enumeration",
  "symbol" : {
    "kind" : "Enumeration",
    "modules" : [
      "Core Bluetooth"
    ],
    "preciseIdentifier" : "c:@E@CBManagerState"
  },
  "title" : "CBManagerState"
}
-->

# CBManagerState

The possible states of a Core Bluetooth manager.

```
enum CBManagerState
```

## Topics

### Manager States

[`CBManagerStatePoweredOff`](/documentation/CoreBluetooth/CBManagerState/poweredOff)

A state that indicates Bluetooth is currently powered off.

[`CBManagerStatePoweredOn`](/documentation/CoreBluetooth/CBManagerState/poweredOn)

A state that indicates Bluetooth is currently powered on and available to use.

[`CBManagerStateResetting`](/documentation/CoreBluetooth/CBManagerState/resetting)

A state that indicates the connection with the system service was momentarily lost.

[`CBManagerStateUnauthorized`](/documentation/CoreBluetooth/CBManagerState/unauthorized)

A state that indicates the application isn’t authorized to use the Bluetooth low energy role.

[`CBManagerStateUnknown`](/documentation/CoreBluetooth/CBManagerState/unknown)

The manager’s state is unknown.

[`CBManagerStateUnsupported`](/documentation/CoreBluetooth/CBManagerState/unsupported)

A state that indicates this device doesn’t support the Bluetooth low energy central or client role.

## Relationships

### Conforms To

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

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

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

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

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

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

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)