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Research note: This assessment is based on Twelve South’s published specifications and the current Amazon listing. Chiefs Review did not conduct hands-on laboratory testing.
Quick verdict
The Twelve South AirFly SE solves one specific travel problem well: it sends audio from a 3.5mm headphone jack to one pair of Bluetooth headphones. Its 20-plus-hour battery is suitable for long travel days, but it cannot share audio with a second listener and lacks the receiving mode offered by pricier AirFly models.
AirFly SE at a glance
- Bluetooth transmitter for 3.5mm audio sources
- Connects one pair of wireless headphones
- 20-plus-hour rated battery life
- Designed for aircraft screens, gym equipment and other headphone jacks
- Works with AirPods and other Bluetooth headphones
- Compact travel-focused design
What the AirFly SE does
Many aircraft entertainment systems, treadmills and older TVs still output sound through a 3.5mm headphone jack. AirFly SE plugs into that jack, pairs with Bluetooth headphones and transmits the audio wirelessly. It is useful for travelers who already own good wireless headphones and do not want to use disposable airline earbuds.
The SE is the straightforward model in Twelve South’s lineup. It connects one pair of headphones and transmits audio in one direction. Buyers who want to share a movie with a second listener or send phone audio into a car stereo should compare the more capable AirFly models before buying.
Battery life and travel practicality
Twelve South rates AirFly SE for more than 20 hours of battery life. That is enough on paper for most domestic flights and many long-haul itineraries, though volume, radio conditions and battery age can affect real runtime. Charging it before travel remains wise, especially when connections or delays could extend the day.
Its biggest convenience is compatibility rather than sound enhancement. The adapter cannot improve the quality of an aircraft’s source audio, and Bluetooth introduces some delay. Dialogue and general video viewing should be the intended use; rhythm games or latency-sensitive editing are not.
Pairing and limitations
Setup involves putting both the AirFly and headphones into pairing mode. Once connected, the source device still controls the program while volume behavior can vary by headphone and entertainment system. Travelers should pair and test the adapter at home before a flight instead of learning the controls in a dark cabin.
Pros and cons
Pros
- Uses wireless headphones with 3.5mm-only sources
- 20-plus-hour rated battery
- Compact and easy to pack
- Works with many Bluetooth headphone brands
- Useful beyond airplanes
Cons
- Connects only one pair of headphones
- Transmit-only design
- Possible Bluetooth lip-sync delay
- Another device to charge and remember
- Does not improve poor source audio
Who should buy it?
AirFly SE is a good fit for frequent travelers who use AirPods or other Bluetooth headphones and regularly encounter 3.5mm-only entertainment systems. It also makes sense for gym machines and televisions where a cable would be inconvenient.
Skip it if you need dual-headphone sharing, a Bluetooth receiver for a car or speaker, or a wired connection with zero latency. A different AirFly model or a simple audio cable may fit those needs better.
Frequently asked questions
Can two people listen at the same time?
No. Twelve South lists the AirFly SE for one pair of headphones.
Does it work with AirPods?
Yes. It is designed to pair with AirPods and other Bluetooth wireless headphones.
Can it receive Bluetooth audio?
The SE is a transmitter for wired audio sources. Choose a model with receiving mode if you need to send phone audio into a car or speaker input.
Will it work with a two-prong airplane socket?
The AirFly itself uses a standard 3.5mm plug. Some older aircraft systems may require a separate two-prong airline adapter.
Final verdict
The Twelve South AirFly SE is a focused travel accessory with a clear job. Its long rated battery life and broad headphone compatibility make in-flight entertainment more comfortable for one listener. The feature limits are easy to understand, so buyers who only need single-headphone transmitting avoid paying for modes they may never use.
Specifications checked September 2, 2026. See Twelve South’s official AirFly comparison page. Availability can change.