Twelve South AirFly SE

AirFly SE plugs into airplane screens, televisions, gym equipment, and other wired headphone outputs and runs for more than 20 hours.

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The useful version of the story

The Kool Finds take

Reviewed September 3, 2026 by Kool Finds Editorial. How we curate

What it actually does

Verified factAirFly SE plugs into a standard 3.5-millimeter headphone jack and transmits that audio to one pair of Bluetooth headphones or earbuds. That makes wired outputs on airplane screens, treadmills, televisions, and game hardware usable with wireless headphones.

Why Kool Finds picked it

Kool Finds takeIt bridges two generations of hardware with one small adapter: the screen still expects a cable, your headphones do not, and AirFly introduces them. That is a clean problem-and-solution story.

Who it's for

Practical inferenceMost useful for frequent flyers and gym users who already like their Bluetooth headphones. Someone who travels with wired headphones—or needs two listeners on the same source—does not need this specific SE model.

What to know

Verified factTwelve South rates the SE for more than 20 hours of battery life and one connected pair of headphones. It includes a USB-C-to-USB-A charging cable, and it is a transmitter rather than a receiver; travelers needing two-headphone support or audio input should compare other AirFly models.

Why it's interesting

Kool Finds takeThe product exists because airplanes modernized their screens and passengers modernized their headphones on different schedules. It is a tidy adapter for that oddly persistent gap.

Research basis and sources

Product facts were checked against the sources below. Editorial observations and practical inferences are labeled separately. Kool Finds did not personally test this item.