The phrase "communication range" refers to the distance or area within which someone can effectively send or receive messages or signals to communicate with others. Full definition
The increased sensitivity leads in principle to longer communications range. (sciencedaily.com)
I received numerous appreciative communications ranging from cancelling surgery for hip replacement to removing brain fog, and curing autoimmune diseases. (fullhealthsecrets.com)
Buried in the patch notes is this cool feature: «Find paired controllers within communication range by activating the vibration feature.» (quartertothree.com)