Audio

Twelve South AirFly SE — Bluetooth 3.5mm Audio Transmitter (White)

Twelve South AirFly SE — Bluetooth 3.5mm Audio Transmitter (White)

Product description

Turn wired sources into Bluetooth audio
The Twelve South AirFly SE plugs into any standard 3.5mm headphone jack to stream sound wirelessly to AirPods, Bluetooth earbuds, or over-the-ear headphones. It’s built to be a travel companion for inflight entertainment systems, gym equipment, gaming consoles, or older televisions that lack Bluetooth.

Included in the box
Each package contains the AirFly SE transmitter, a USB-C charging cable, and a small soft carry pouch for protection and easy packing. The unit's compact footprint and lightweight construction make it easy to slip into a pocket or travel organizer.

Design and controls
Housed in a durable plastic shell, the AirFly SE is pocket-sized and features simple, tactile buttons for power, pairing, and volume adjustments. LED indicators show pairing and battery status. The transmitter supports simultaneous charging via USB-C, so you can use it while it’s plugged into a power source.

Battery and performance
A single charge delivers more than 20 hours of playback under typical use—enough for most long-haul flights. Bluetooth pairing is straightforward: switch the AirFly to pairing mode, put your headphones in discoverable mode, and the two devices connect. Audio latency is low enough for movie watching in most situations, and the unit automatically reconnects to previously paired devices in many cases.

Pros

  • Long battery life (20+ hours)
  • Works while charging via USB-C
  • Compact and easy to carry

Cons

  • Occasional pairing hiccups reported
  • Not true wireless audio quality for audiophiles
  • Rare sound dropouts require a restart

VerdictThe AirFly SE is a simple, travel-focused Bluetooth transmitter that reliably turns seatback screens, treadmills, or older TVs into wireless sources for modern headphones. It pairs quickly, holds a long charge—enough for long-haul travel—and supports pass-through charging so you can use it while powering up. Occasional pairing quirks and rare dropouts have been reported, but most users find it an

Reader reviews

  1. Mom of 2 debt makers 5/5

    Perfect for long international flights

    Used this on flights to the UK with AirPods and Beats. I paired before leaving home; Beats needed a second try but then it worked. Plugged into the seat jack and it performed flawlessly—apart from a brief static that fixed after replugging. The battery covered a 10-hour flight and recharged fast. Would recommend for travel.

  2. Holly 5/5

    Tap the plus button a few times when pairing

    Had some trouble pairing with Bose earbuds at first, but pressing the plus button repeatedly during initial sync solved it. Bluetooth lock-in is strong and the battery holds well. Worked perfectly on the flights I took.

  3. Mike O 5/5

    Essential for in-flight entertainment

    I use this to connect my Bluetooth headphones to seatback systems. Sound quality is solid and the connection is reliable—far better than airline-provided wired headphones. For pairing: power on, hold the main button ~4 seconds until amber/white flash, then put your headphones in pairing mode. Pair before takeoff for less hassle. Small and I bring it on every trip.

  4. Hampus 5/5

    Does the job

    Works very well for devices without Bluetooth. Good overall quality.

  5. Kyle 5/5

    Simple, dependable wireless audio dongle

    This exceeded my expectations. Pairing is quick, the connection stayed steady, and audio was clear with minimal latency. The small size and long battery make it great for travel or gym use. Very easy to operate even for non-tech users.

  6. Kristina 5/5

    Works perfectly on long-haul flights

    Performed flawlessly on a long-haul flight; battery lasted a long time. I tested with Sony headphones and AirPods—good sound and no noticeable delay watching movies.

  7. Doug 5/5

    Great fix when plane systems lack Bluetooth

    Used several times and it does the job. There’s a slight delay but nothing distracting for movies. Plug into the 3.5mm jack and it sends audio to your earbuds once paired. Not audiophile-grade, but fine on a noisy plane. It auto-connects to paired buds and is very compact for packing.

  8. Benjamin Hillaud 5/5

    Fast setup, reliable

    Fast setup — works well

  9. Luis Lozoya 5/5

    Handy little travel audio adapter

    I bought the AirFly SE to use my AirPods with airplane screens and it’s been great. It works with any 3.5mm jack so I also use it at the gym and on an older TV. No app required—turn it on, pair, and audio streams almost instantly. Connection stayed stable for the whole flight with clear sound and negligible delay. Battery easily lasts 20+ hours and it charges via USB-C while in use. The side volume buttons are a convenient extra.

  10. Mandi 5/5

    Makes flying cleaner and safer

    I’ve had ear infections this year, so using my own wireless headphones was a must. This let me avoid airline headsets and feel comfortable—definitely worth it if you fly often.

  11. Ramses Hernandez 4/5

    Solved my PC Bluetooth problem, with occasional hiccups

    My laptop’s Bluetooth stopped working, so I used this to stream music while working. It paired easily, fits in its small pouch, and delivers clean sound with no static. It works with non-Apple headphones too. One drawback: every so often audio cuts out and the unit needs a restart to reconnect.

  12. irun4bling 1/5

    Disappointed — unreliable on my trip

    Bought this for multiple long flights but it wouldn’t produce sound on the airplane. I charged it fully beforehand and again mid-flight, saw it paired but still got no audio, so I used the airline headphones. I tried resetting it later but had poor results during travel.

  13. Fahd Khan 5/5

    Very handy with occasional glitches

    Used it on two long flights; sometimes a quick restart was needed when sound didn’t come through, but overall very convenient and doesn’t degrade audio quality much.

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