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id: cc08623a-e9f4-462c-9f7f-468d42d24c90
title: createSpeakerDeviceWatcher
slug: /js/reference/webrtc/create-speaker-device-watcher
description: createSpeakerDeviceWatcher function in the WebRTC namespace.
max-toc-depth: 3
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### createSpeakerDeviceWatcher

* `Const` **createSpeakerDeviceWatcher**(): `Promise<EventEmitter<DeviceWatcherEvents, any>>`

Asynchronously returns an event emitter that notifies changes in all speaker devices. This is equivalent to calling `createDeviceWatcher({ targets: ['speaker'] })`, so refer to [createDeviceWatcher](/docs/browser-sdk/v3/js/reference/webrtc/create-device-watcher) for additional information about the returned event emitter.

#### Returns

`Promise<EventEmitter<DeviceWatcherEvents, any>>`