The keyboard navigation of the Captcha is always available.
Kendo UI Captcha supports the following keyboard shortcuts:
|Selects/deselects the focused button.
|Navigates to the next element of the Captcha.
|Navigates to the previous element of the Captcha.
|Increases the audio control volume.
|Decreases the audio control volume.
For a complete example, refer to the demo on keyboard navigation of the Captcha.