Cynthia Nixon’s message to progressives at the state Democratic Convention on Wednesday carried only so far.

That’s because the meeting room at Hofstra University assigned to the Progressive Caucus, where Nixon is popular, wasn’t equipped with a microphone.

The executive committee next door, controlled by Gov. Andrew Cuomo, had a sound system.

When asked by a Post reporter if she thought she could get a fair hearing from delegates assembled on Long Island if she couldn’t even get a mic, Nixon let out a long laugh.

“I think that it’s important to show up,” the challenger said. “It’s important that, at the Democratic convention, there is at least one actual Democrat running for governor.”

As the convention got under way, Cuomo’s hand could be seen throughout the proceedings.

The speakers offering the opening invocation repeatedly praised the governor during the prayer, while former New York City Council Speaker Christine Quinn ran through a PowerPoint presentation of what she described as Cuomo’s liberal accomplishments.

“When you look at this PowerPoint, you’re going to be invigorated,” she said.