In All Quiet on the Western Front, the narrator says,
In the meantime we receive visitors, a couple of wireless-men, who are generously invited to the feed. They sit in the living-room where there is a piano.
Could someone please explain to me what "Wireless-men" means? I've looked on google, and I can't find anything remotely useful. It might just be because I'm bad at using it though :P.
I'd greatly appreciate any help!