# RadioGroup ## Props | Name | Type | Default | Description | |:-----|:-----|:--------|:------------| | children | node | | The content of the component. | | classes | object | | Useful to extend the style applied to components. | | name | string | | The name used to reference the value of the control. | | onChange | function | | Callback fired when a radio button is selected.

**Signature:**
`function(event: object, checked: boolean) => void`
*event:* `change` event
*checked:* The `checked` value of the switch | | selectedValue | string | | Value of the selected radio button | Any other properties supplied will be spread to the root element. ## CSS API You can overrides all the class names injected by Material-UI thanks to the `classes` property. This property accepts the following keys: - `root` Have a look at [overriding with class names](/customization/overrides#overriding-with-class-names) section for more detail. If using the `overrides` key of the theme as documented [here](/customization/themes#customizing-all-instances-of-a-component-type), you need to use the following style sheet name: `MuiRadioGroup`.