The Scosche BTT-SP Flytunes Bluetooth Wireless Audio Transmitter wirelessly transmits audio from a single Bluetooth or non-Bluetooth source with an AUX 3.5mm output port over a Bluetooth connection to either 1 or up to 2 devices with crisp crystal clear sound. Use it to listen to a movie on an airplane or as passengers in a car via wireless earbuds headphones or another Bluetooth-compatible device. The Bluetooth range is approximately 30-feet so you?ll no longer have to unplug headphones or miss the movie if you move around the plane. The transmitter also works with non-Bluetooth devices by plugging it into any 3.5mm AUX output port allowing you to use your Bluetooth headphones and earbuds with an iPod Shuffle old-school CD or cassette tape player. FlyTunes is compatible with in-flight airplane entertainment gym machines gaming devices and TVs over Bluetooth or Non-Bluetooth 3.5mm AUX devices for streaming audio to Bluetooth devices such as AirPods earbuds headphones and more.