Twelve South AirFly SE | Wireless Bluetooth Audio Transmitter Adapter for AirPods/Headphones, 20+ Hour Battery, Works with 0.138 in Aux Jacks on Airplanes

The Twelve South AirFly SE is a Bluetooth adapter that turns any audio source with a 3.5mm jack into a wireless device, letting you use headphones like AirPods with in-flight entertainment systems, gym equipment, or gaming consoles. It's designed for people who want to cut the cord without giving up compatibility with older gear.

Its standout feature is a battery that delivers over 20 hours of playback, enough for long flights or multiple workout sessions without recharging. It can also be used while charging with the included USB-C cable, so you won't run out of power at key moments. Its compact size makes it easy to slip into a pocket, and pairing with Bluetooth headphones is quick and stable. The built-in volume buttons and battery indicator add everyday convenience.

Overall, it does its job well for listening to audio wirelessly from sources with an analog jack. However, it's not the best choice if you need a Bluetooth receiver—for example, to stream audio from your phone to older speakers: the AirFly only transmits from the 3.5mm input to your headphones, not the other way around. It's also not designed to transmit from multiple sources at once, so anyone looking for a multipoint hub should consider other options.