# AVSystemRoute.LaunchMode.player Launches the system’s built-in media player on the remote device. ``` case player ``` ## Discussion Use this mode when you want to use the remote device’s built-in media player instead of launching a custom application. This provides a standardized playback experience without requiring a corresponding application to be installed on the remote device. To support the [`AVSystemRoute.LaunchMode.player`](/documentation/AVSystemRouting/AVSystemRoute-5s2um/LaunchMode/player) launch mode, the `MDESupportsUniversalURLPlayback` key must be set in the app’s `Info.plist` file. For example: ```xml MDESupportsUniversalURLPlayback ``` > Important: If `MDESupportsUniversalURLPlayback` is not set to `true`, calls to > ``doc://com.apple.avsystemrouting/documentation/AVSystemRouting/AVSystemRouteSession-gp78/start()`` fail. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)