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# CBCharacteristic

A characteristic of a remote peripheral’s service.

```
class CBCharacteristic
```

## Overview

[`CBCharacteristic`](/documentation/CoreBluetooth/CBCharacteristic) and its subclass [`CBMutableCharacteristic`](/documentation/CoreBluetooth/CBMutableCharacteristic) represent further information about a peripheral’s service. In particular, [`CBCharacteristic`](/documentation/CoreBluetooth/CBCharacteristic) objects represent the characteristics of a remote peripheral’s service. A characteristic contains a single value and any number of descriptors describing that value. The properties of a characteristic determine how you can use a characteristic’s value, and how you access the descriptors.

## Topics

### Identifying a Characteristic

[`service`](/documentation/CoreBluetooth/CBCharacteristic/service)

The service to which this characteristic belongs.

### Accessing Characteristic Data

[`value`](/documentation/CoreBluetooth/CBCharacteristic/value)

The value of the characteristic.

[`descriptors`](/documentation/CoreBluetooth/CBCharacteristic/descriptors)

A list of the descriptors discovered in this characteristic.

[`properties`](/documentation/CoreBluetooth/CBCharacteristic/properties)

The properties of the characteristic.

[`CBCharacteristicProperties`](/documentation/CoreBluetooth/CBCharacteristicProperties)

Values that represent the possible properties of a characteristic.

[`isNotifying`](/documentation/CoreBluetooth/CBCharacteristic/isNotifying)

A Boolean value that indicates whether the characteristic is currently notifying a subscribed central of its value.

[`isBroadcasted`](/documentation/CoreBluetooth/CBCharacteristic/isBroadcasted)

A Boolean value that indicates whether the characteristic the service broadcasts this characteristic.


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