Where does it talk about a voice assistant?

The first image which annotates the controls has a "Push-to-Talk button" which is used for "Voice communication" and "AI assistant activation".

	▲	embedding-shape 3 hours ago \| parent [-]
		PTT sounds great, tiny walkie-talkies with user-provided antennas, and seems rugged too, I'd probably end up buying two at least :)