Audio Output Devices API

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The Audio Output Devices API allows web applications to prompt users about what output device should be used for audio playback.

Concepts and usage

Operating systems commonly allow users to specify that audio should be played from speakers, a Bluetooth headset, or some other audio output device. This API allows applications to provide this same functionality from within a web page.

Even if allowed by a permission policy, access to a particular audio output device still requires explicit user permission, as the user may be in a location where playing audio through some output devices is not appropriate.

The API provides the MediaDevices.selectAudioOutput() method that allows users to select their desired audio output from those that are allowed by the speaker-selection directive of the Permissions-Policy HTTP header for the document. The selected device then has user permission, allowing it to be enumerated with MediaDevices.enumerateDevices() and set as the audio output device using HTMLMediaElement.setSinkId().

Audio devices may arbitrarily connect and disconnect. Applications that wish to react to this kind of change can listen to the devicechange event and use enumerateDevices() to determine if sinkId is present in the returned devices. This might trigger, for example, pausing or unpausing playback.


Extensions to interfaces

The Audio Output Devices API extends the following APIs, adding the listed features:



This method prompts the user to select a specific audio output device, for example a speaker or headset. Selecting a device grants user permission to use that device and returns information about the device, including its ID.



This method sets the ID of the audio device to use for output, which will be used if permitted.


This property returns the unique ID of the audio device being used for output, or an empty string if the default user agent device is being used.

Security requirements

Access to the API is subject to the following constraints:


Here's an example of using selectAudioOutput(), within a function that is triggered by a button click, and then setting the selected device as the audio output.

The code first checks if selectAudioOutput() is supported, and if it is, uses it to select an output and return a device ID. We then play some audio using the default output, and then call setSinkId() in order to switch to the selected output device.

document.querySelector("#myButton").addEventListener("click", async () => {
  if (!navigator.mediaDevices.selectAudioOutput) {
    console.log("selectAudioOutput() not supported or not in secure context.");

  // Display prompt to select device
  const audioDevice = await navigator.mediaDevices.selectAudioOutput();

  // Create an audio element and start playing audio on the default device
  const audio = document.createElement("audio");
  audio.src = "";;

  // Change the sink to the selected audio output device.

Note that if you log the output details, they might look something like this:

  `${audioDevice.kind}: ${audioDevice.label} id = ${audioDevice.deviceId}`,
// audiooutput: Realtek Digital Output (Realtek(R) Audio) id = 0wE6fURSZ20H0N2NbxqgowQJLWbwo+5ablCVVJwRM3k=


Audio Output Devices API

Browser compatibility


BCD tables only load in the browser


BCD tables only load in the browser


BCD tables only load in the browser


BCD tables only load in the browser