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# extendedProperties

A property that indicates the characteristic defines additional properties in the extended properties descriptor.

```
static var extendedProperties: CBCharacteristicProperties { get }
```

## Discussion

This property is only available for a remote peripheral’s service’s characteristic. You can’t use this property with a local characteristic, that is, a [`CBMutableCharacteristic`](/documentation/CoreBluetooth/CBMutableCharacteristic) that you publish using the [`add(_:)`](/documentation/CoreBluetooth/CBPeripheralManager/add(_:)) method of the [`CBPeripheralManager`](/documentation/CoreBluetooth/CBPeripheralManager) class.

---

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