---
title: devices
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avexternalsyncdevice/discoverysession/devices
---

# devices

An array of external sync devices connected to this host.

## Declaration

```swift
var devices: [AVExternalSyncDevice] { get }
```

## Discussion

Discussion The list is updated when external sync devices are connected to the host and they remain in the list until they become unavailable. This property is key-value observable.