# Radio

The [`Radio`][radio] widget is a [`Button`](./button.md) that shows a circular
indicator when a [`Dynamic<T>`][dynamic] contains the radio's associated value.
When clicked, the `Dynamic<T>` is updated to the radio's associated value.

[radio]: <{{ docs }}/widgets/radio/struct.Radio.html>
[dynamic]: <{{docs}}/value/struct.Dynamic.html>
