CM
The Dominion Representative is using the "Results Export" function as described by the Dominion Election Management System user guide in "CHAPTER 13: RESULTS EXPORT"
He then takes the export data to an internet-connected laptop with remote viewing enabled.
https://sos.state.co.us/pubs/elections…
https://twitter.com/CodeMonkeyZ/status/1334056861356621829
https://www.sos.state.co.us/pubs/elections/VotingSystems/DVS-DemocracySuite511/documentation/UG-RTR-UserGuide-5-11-CO.pdf