Communication while operating in the DC verbally is basically a non-starter unless you're using bone conduction mics.

Source: https://slashdot.org/story/23/09/19/2155211/schneider-electric-warns-that-existing-datacenters-arent-buff-enough-for-ai?utm_source=rss1.0mainlinkanon&utm_medium=feed

That bone conduction technology also ensures you stay safe and alert to your surroundings while on a jog, while the IPX6 water-resistant status means you don’t have to give them a second thought during a particularly sweaty workout or rainy day run.

Source: https://nypost.com/2023/04/15/open-ear-induction-stereo-wireless-headphones-are-69-off/