How can I enable and use the voice recognition feature in my Audi A6?

I recently purchased an Audi A6 and noticed it has a voice recognition feature. Can you please guide me on how to enable and use it effectively?

To turn on voice recognition, press the control knob on your Audi's multi-function steering wheel and hold it until you hear the audio prompt. Then, you can start speaking your commands. Remember to speak clearly and naturally, and avoid background noise for best results.