Twelve South AirFly SE Bluetooth Audio Transmitter — Black, 20+ Hour Battery & Low-Latency

The Twelve South AirFly SE is a pocket-sized Bluetooth audio transmitter that converts any 3.5mm headphone jack into a wireless source for AirPods, wireless earbuds, or noise-cancelling headphones.

AirFly SE bridges the gap between wired audio outputs and modern Bluetooth headphones. It’s designed for travel and shared-equipment scenarios — like airplane seatback entertainment, hotel TVs, gym machines, or tablets that lack Bluetooth — letting you stream high-fidelity, low-latency audio from a 3.5mm port to your wireless headphones. The unit is compact, easy to pair, and built to keep going through long flights or multiple workouts with a single charge.

How does the AirFly SE make airplane and gym audio wireless?

AirFly SE plugs directly into any standard 3.5mm jack and sends audio over Bluetooth to your paired headphones. There’s no app required — pairing is quick and the device supports simultaneous connection to most Bluetooth headsets for immediate listening.

• Plugs into seatback or machine headphone jacks for instant wireless streaming
• Supports AirPods, wireless earbuds, and other Bluetooth headphones
• Simple pairing process with visible LED and button controls
• Works with in-flight entertainment, treadmills, stationary bikes, and TVs

Will the battery last through a long flight or multiple gym sessions?

Yes — AirFly SE is engineered for extended use with over 20 hours of playback on a single charge, outlasting many competing transmitters. You can also keep it connected while charging using the included USB-C cable to avoid interruptions on very long trips.

• Over 20 hours of continuous battery life per charge
• USB-C charging included for faster top-ups and in-use charging
• Low-battery indicators help you plan recharging during layovers or between workouts

How good is the audio quality and latency?

AirFly SE uses optimized Bluetooth audio transmission aimed at high-fidelity playback with minimal lag, suitable for watching movies or playing games where synchronization matters. While exact performance depends on the headphones and source device, the SE model prioritizes clear sound and responsive timing.

• Technology tuned for high-fidelity audio reproduction
• Low-latency streaming to reduce lip-sync and gameplay delay
• Consistent performance across tablets, laptops, consoles, and in-flight systems

How portable and durable is the AirFly SE for travel?

Designed to fit a pocket or travel pouch, AirFly SE is lightweight and built to be taken everywhere. It includes a small travel pouch, so the transmitter and cable stay protected in luggage or a gym bag.

• Compact form factor and light weight for easy carrying
• Included travel pouch protects the device during transit
• Rugged exterior and simple plug-and-play design for frequent use

Who is this for? AirFly SE is ideal for travelers who prefer wireless headphones on airplanes, gym-goers using shared fitness equipment, gamers wanting to use wireless headsets with console controllers, and anyone with legacy audio sources that lack Bluetooth. If you own AirPods, wireless earbuds, or noise-cancelling headphones and you frequently encounter 3.5mm-only audio outputs, AirFly SE offers a convenient, long-lasting solution to go wireless without replacing your source device.