---
title: descriptors
framework: corebluetooth
role: symbol
role_heading: Instance Property
path: corebluetooth/cbmutablecharacteristic/descriptors
---

# descriptors

An array of the characteristic’s descriptors.

## Declaration

```swift
var descriptors: [CBDescriptor]? { get set }
```

## Discussion

Discussion The value of this property is an array of CBDescriptor objects that provide more information about a characteristic’s value. For example, they may describe the value in human-readable form and describe how to format the value for presentation purposes. For more information about characteristic descriptors, see CBDescriptor.

## See Also

### Managing a Mutable Characteristic

- [value](corebluetooth/cbmutablecharacteristic/value.md)
- [properties](corebluetooth/cbmutablecharacteristic/properties.md)
- [permissions](corebluetooth/cbmutablecharacteristic/permissions.md)
- [CBAttributePermissions](corebluetooth/cbattributepermissions.md)
- [subscribedCentrals](corebluetooth/cbmutablecharacteristic/subscribedcentrals.md)