---
description: API reference for rtk-caption-toggle component (Web Components (HTML) Library)
title: rtk-caption-toggle
image: https://developers.cloudflare.com/og-docs.png
---

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# rtk-caption-toggle

Last updated Apr 21, 2026|Copy as Markdown|[View as Markdown](https://developers.cloudflare.com/realtime/realtimekit/ui-kit/api-reference/core/rtk-caption-toggle/index.md)|[Agent setup](https://developers.cloudflare.com/agent-setup/)

## Properties

| Property | Type              | Required | Default               | Description    |
| -------- | ----------------- | -------- | --------------------- | -------------- |
| config   | UIConfig1         | ❌        | createDefaultConfig() | Config         |
| iconPack | IconPack1         | ❌        | defaultIconPack       | Icon pack      |
| meeting  | Meeting           | ✅        | \-                    | Meeting object |
| size     | Size1             | ✅        | \-                    | Size           |
| states   | States1           | ✅        | \-                    | States object  |
| t        | RtkI18n           | ❌        | useLanguage()         | Language       |
| variant  | ControlBarVariant | ✅        | \-                    | Variant        |

## Usage Examples

### Basic Usage

```html
<rtk-caption-toggle></rtk-caption-toggle>
```

### With Properties

```html
<rtk-caption-toggle
 size="md"
 variant"button">
</rtk-caption-toggle>
```

```html
<script>
  const el = document.querySelector("rtk-caption-toggle");

  el.meeting= meeting
</script>
```

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