## HTML Audio/Video DOM: `volumechange` Event
The `volumechange` event fires when the volume of an audio or video element is updated. This includes both adjusting the volume level up or down, as well as muting or unmuting the media.
This event is highly useful for synchronizing custom user interface (UI) controls—such as custom volume sliders or mute buttons—with the actual state of the media player.
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## Browser Support
The numbers in the table specify the first browser version that fully supports this event.
| Event | Chrome | Internet Explorer / Edge | Firefox | Safari | Opera |
| :--- | :--- | :--- | :--- | :--- | :--- |
| `volumechange` | Yes | 9.0+ | Yes | Yes | Yes |
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## Syntax
You can register the `volumechange` event in three ways:
### 1. In HTML
```html
YouTip