A low-power FM transmitter broadcasts the audio for a film directly to car radios. Patrons tune their car radios to a designated frequency, allowing them to enjoy the movie’s soundtrack privately within their vehicles. This setup is essential for the drive-in experience, eliminating the need for external speakers and minimizing noise pollution for surrounding areas.
This technology offers several advantages. It enhances the immersive experience by providing clear, personalized sound, contributes to the nostalgic ambiance of drive-in theaters, and allows for adjustable volume control for individual preferences. Historically, these localized broadcasts were crucial for drive-ins, offering a practical solution before the widespread availability of portable audio devices and Bluetooth technology. The dedicated audio frequency remains a defining feature of the modern drive-in experience.