---
title: supportsSimultaneousSessions
framework: mediadevice
role: symbol
role_heading: Instance Property
path: mediadevice/mediadeviceextension/supportssimultaneoussessions
---

# supportsSimultaneousSessions

Indicates whether the extension supports handling simultaneous media sessions via MediaOutputSession.

## Declaration

```swift
@MainActor var supportsSimultaneousSessions: Bool { get }
```

## Discussion

Discussion When true, the extension can receive multiple active MediaOutputSession instances at once. When false, only one session is active at a time.