> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes. # selectVideoInputDevice > Selects the video input device for future calls. ```ts selectVideoInputDevice(device, options?): void ``` Selects the video input device for future calls. Optionally saves as a preference. ## **Parameters** **`device`** `MediaDeviceInfo` — required Device to select. See [`MediaDeviceInfo`](https://developer.mozilla.org/en-US/docs/Web/API/MediaDeviceInfo). --- **`options`** `SelectDeviceOptions` Selection options, including whether to persist the choice. See [`SelectDeviceOptions`](/docs/browser-sdk/v4/reference/interfaces/select-device-options). --- ## **Returns** `void` ## **Examples** ```ts selfParticipant.selectVideoInputDevice(device, options); ``` > Selects the video input device for future calls.