---
title: Audio Output Routes
framework: audiotoolbox
role: collectionGroup
role_heading: API Collection
path: audiotoolbox/audio-output-routes
---

# Audio Output Routes

The various audio output destinations available for an iOS device.

## Overview

Overview These strings are used as values for the kAudioSession_AudioRouteKey_Type key for the dictionary associated with the kAudioSession_AudioRouteKey_Outputs array.

## Topics

### Constants

- [kAudioSessionOutputRoute_LineOut](audiotoolbox/kaudiosessionoutputroute_lineout.md)
- [kAudioSessionOutputRoute_Headphones](audiotoolbox/kaudiosessionoutputroute_headphones.md)
- [kAudioSessionOutputRoute_BluetoothHFP](audiotoolbox/kaudiosessionoutputroute_bluetoothhfp.md)
- [kAudioSessionOutputRoute_BluetoothA2DP](audiotoolbox/kaudiosessionoutputroute_bluetootha2dp.md)
- [kAudioSessionOutputRoute_BuiltInReceiver](audiotoolbox/kaudiosessionoutputroute_builtinreceiver.md)
- [kAudioSessionOutputRoute_BuiltInSpeaker](audiotoolbox/kaudiosessionoutputroute_builtinspeaker.md)
- [kAudioSessionOutputRoute_USBAudio](audiotoolbox/kaudiosessionoutputroute_usbaudio.md)
- [kAudioSessionOutputRoute_HDMI](audiotoolbox/kaudiosessionoutputroute_hdmi.md)
- [kAudioSessionOutputRoute_AirPlay](audiotoolbox/kaudiosessionoutputroute_airplay.md)

## See Also

### Audio Routes

- [Audio Route Change Reasons](audiotoolbox/1618380-audio-route-change-reasons.md)
- [Audio Route Description Dictionary Keys](audiotoolbox/audio-route-description-dictionary-keys.md)
- [Audio Route Type Key](audiotoolbox/audio-route-type-key.md)
- [Audio Input Routes](audiotoolbox/audio-input-routes.md)
- [Audio Route Change Dictionary Keys](audiotoolbox/audio-route-change-dictionary-keys.md)
- [Alternative Audio Route Change Reason Dictionary Key](audiotoolbox/alternative-audio-route-change-reason-dictionary-key.md)