---
title: supportsBluetoothChannelSounding
framework: nearbyinteraction
role: symbol
role_heading: Instance Property
path: nearbyinteraction/nidevicecapability/supportsbluetoothchannelsounding
---

# supportsBluetoothChannelSounding

A Boolean value that indicates whether the device supports distance measurements over a Bluetooth connection.

## Declaration

```swift
var supportsBluetoothChannelSounding: Bool { get }
```

## Discussion

Discussion Bluetooth Channel Sounding is a Bluetooth 6.0 specification ranging strategy that relies on a Bluetooth connection to measure distance between iPhone and a paired accessory. Check this property before using Bluetooth Channel Sounding ranging to ensure the device has the required hardware capabilities. Running a Bluetooth Channel Sounding session on an unsupported device invalidates the session with an error. To use Bluetooth Channel Sounding, Pair your accessory with AccessorySetupKit; the Nearby Interaction framework only supports Bluetooth Channel Sounding with accessories paired through AccessorySetupKit. Instantiate an NINearbyAccessoryConfiguration using the init(bluetoothChannelSoundingIdentifier:previousBluetoothIdentifier:) initializer: guard NISession.deviceCapabilities.supportsBluetoothChannelSounding else {     print("Device doesn't support Bluetooth Channel Sounding.")     return }

// Create a configuration for Bluetooth Channel Sounding ranging. let config = NINearbyAccessoryConfiguration(     bluetoothChannelSoundingIdentifier: identifier,     previousBluetoothIdentifier: nil ) session.run(config)

## See Also

### Checking session features

- [supportsPreciseDistanceMeasurement](nearbyinteraction/nidevicecapability/supportsprecisedistancemeasurement.md)
- [supportsDirectionMeasurement](nearbyinteraction/nidevicecapability/supportsdirectionmeasurement.md)
- [supportsCameraAssistance](nearbyinteraction/nidevicecapability/supportscameraassistance.md)
- [supportsExtendedDistanceMeasurement](nearbyinteraction/nidevicecapability/supportsextendeddistancemeasurement.md)
- [supportsDLTDOAMeasurement](nearbyinteraction/nidevicecapability/supportsdltdoameasurement.md)