---
title: isProducedByAccessory
framework: corelocation
role: symbol
role_heading: Instance Property
path: corelocation/cllocationsourceinformation/isproducedbyaccessory
---

# isProducedByAccessory

A Boolean value that indicates whether the system receives the location from an external accessory.

## Declaration

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

## Discussion

Discussion Core Location sets isProducedByAccessory to true if the system retrieved the location from an external accessory attached to the device, such as a Made for iPhone GPS dongle or CarPlay. Otherwise, the default value is false.

## See Also

### Identifying the source of location data

- [isSimulatedBySoftware](corelocation/cllocationsourceinformation/issimulatedbysoftware.md)