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# properties

The properties of the characteristic.

```
var properties: CBCharacteristicProperties { get set }
```

## Discussion

The properties of a characteristic determine the access to and use of the characteristic’s value and descriptors. For a list of the possible values representing the properties of a characteristic, see the [`CBCharacteristicProperties`](/documentation/CoreBluetooth/CBCharacteristicProperties) enumeration in [`CBCharacteristic`](/documentation/CoreBluetooth/CBCharacteristic). However, you can’t use the [`broadcast`](/documentation/CoreBluetooth/CBCharacteristicProperties/broadcast) and [`extendedProperties`](/documentation/CoreBluetooth/CBCharacteristicProperties/extendedProperties) characteristic properties when creating a mutable characteristic.

---

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