Do they use the old school speaker on a pole, or do they broadcast over local FM for movie audio?

Broadcast

You can hear the movie playing throughout the parking lots. The radio allows you to move freely from your car..to the snacks in the trunk..or sitting in your lawn chair! More than fair priced for "3" movies! And fair priced concessions. You have to visit!!!!

FM broadcadt

Local fm radio

Thru radio

FM broadcasting through your car speakers