We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 6 min read · Independent comparison
If you want a simple, single-purpose Bluetooth adapter that turns any 3.5mm airplane jack into a wireless link for your AirPods or headphones, choose Loccess Airplane; if you need a 3-in-1 travel audio tool that also plays music from a TF card and runs over 18 hours per charge, choose Herfair 5.4.
• Loccess Airplane — biggest strength: It's a clean 2-in-1 transmitter/receiver dongle with a 3.5mm AUX input, stereo output to headphones or a speaker, Bluetooth, and automatic on/off. It does the airplane job and nothing extra.
• Loccess Airplane — biggest trade-off: White only, one unit, and no listed battery-life figure or card playback. If you want a music player built in, it doesn't have one.
• Herfair 5.4 — biggest strength: A true 3-in-1 with TX, RX and a TF card reader (mp3/wav/flac/ape), Bluetooth 5.4, an 18-hour battery claim, a battery indicator, and a USB-C charging cable so you can use it while topping up.
• Herfair 5.4 — biggest trade-off: More functions mean more to learn and manage — card formats, modes, charging habits — and it's the heavier, busier option at 50 g.
• Who each is for: Pick Loccess Airplane if you just want your wireless headphones working on a flight, fast. Pick Herfair 5.4 if you fly long-haul often and want one gadget that also plays your own music.
Loccess Airplane is the minimalist answer to a very specific annoyance: the seatback screen only gives you a 3.5mm hole, and your AirPods or wireless headphones don't plug into anything. This adapter sits in the middle. In transmitter mode it takes audio from that 3.5mm AUX jack and sends it to your Bluetooth headphones in stereo. In receiver mode it does the reverse, letting a wired source feed wireless output to a speaker or your headphones.
The details that matter here are practical. It supports a 3.5mm AUX input and a headphone/speaker output with stereo audio, connects over Bluetooth, and runs on battery power. There's also an automatic on/off feature, which is genuinely useful on a plane — you don't want to be fiddling with a power switch while the cabin lights are down. A USB Type A connector on the cable means you can charge it from a standard USB port, including many in-seat power outlets and battery banks.
Who should buy it? The traveler who wants one job done with minimal thought. You charge it, you plug it into the armrest or seatback jack, you pair once, and you're done. If you fly a few times a year, use AirPods or another set of Bluetooth headphones, and want the smallest possible fuss, this is the pick I'd hand you.
Who should skip it? Anyone who wants extra features. There's no card slot, no music player, and the sheet lists no battery-hour figure, so I can't tell you how long a charge lasts — only that it's battery-powered. It also comes in white only and as a single unit, which some people will find less interesting than a more colorful alternative. If you want a device that doubles as a media player, look at the other one.
Herfair 5.4 is the Swiss Army knife of the pair. It's a 3-in-1 adapter: Bluetooth transmitter, Bluetooth receiver, and — the part the brand calls out as unique to them — a TF card reader that plays music directly. Supported audio formats for card playback are mp3, wav, flac and ape, with mp3 recommended. That means you can load a memory card with albums and listen without touching your phone at all, which is a real perk on a long flight with no Wi-Fi.
The travel case is strong. Herfair claims over 18 hours of audio on a single charge, and it can be used while charging via the included USB-C cable — so a power bank or seat outlet keeps it alive indefinitely. A battery indicator tells you when it's time to plug in, which is the kind of small thing that saves you on hour eleven of a transatlantic hop. Bluetooth 5.4 handles pairing with AirPods, wireless earbuds or headsets, and built-in volume buttons give you control without reaching for your phone.
It's not just for planes, either. The same 3.5mm jack trick works on gym equipment, gaming devices, classic stereo systems, TVs and car stereos — anywhere there's an old-school audio port and you'd rather be wireless. The box includes the adapter, a dual 3.5mm male-to-female adapter, a USB-A-to-C powering cable and a user manual. Weight is 50 g, and it comes in a colorful finish. Warranty is listed at 18 months.
Who should buy it? Frequent flyers, people who want a card player built in, and anyone who'd rather own one adapter that covers flights, gyms, TVs and home stereo. Who should skip it? If you want zero setup, three modes and a card format to think about is more homework than you asked for. And if you specifically want the lightest, plainest option, the simpler device wins.
• Simplest airplane setup → Loccess Airplane. Two modes, automatic on/off, plug in and pair.
• Longest listed battery life → Herfair 5.4. 18+ hours on a charge, plus use-while-charging over USB-C.
• Most features for the money → Herfair 5.4. TX, RX and TF card playback in one unit, with a battery indicator and volume buttons.
• Want to play music without your phone → Herfair 5.4. Its TF card mode reads mp3, wav, flac and ape files directly.
• Lightest, least to think about → Loccess Airplane. One unit, one white colorway, no card formats or mode juggling.
• Charging flexibility on a plane → Herfair 5.4. The included USB-A-to-C cable lets it run while charging from a seat outlet or power bank.
• Best for AirPods on a seatback screen → either one. Both transmit 3.5mm audio to Bluetooth headphones in stereo.
• Best all-rounder beyond flying → Herfair 5.4. Gym machines, TVs, gaming devices, car and home stereo are all in its stated scope.
In my opinion, Herfair 5.4 is the one I'd buy. The 18-hour battery claim, use-while-charging, the battery indicator and the TF card player make it the more capable travel companion, and the extra modes cost you nothing on the flight itself — you can ignore them and use it exactly like the simpler adapter. I'd only steer you to Loccess Airplane if you value minimalism above all: fewer modes, automatic on/off, and nothing to configure. If you fly long-haul and want one adapter that earns its place in your bag year-round, go Herfair. Check the current price on Amazon before you decide.
what headphones for airplane
Almost any Bluetooth headphones or earbuds work — including AirPods — as long as you have an adapter that transmits from the plane's 3.5mm jack. Both Loccess Airplane and Herfair 5.4 do exactly that in transmitter mode, outputting stereo audio over Bluetooth.
what is the best headphones for airplanes
That depends on your headphones, not just the adapter. Both units here pair with AirPods, wireless earbuds and headsets over Bluetooth; Herfair 5.4 uses Bluetooth 5.4, and Loccess Airplane lists Bluetooth connectivity with automatic on/off. Your headphone choice is separate from the adapter choice.
what earphones for airplane
Wired earphones still work if you plug them straight into the seat jack, but for wireless earphones you need a transmitter. Both adapters send audio from a 3.5mm AUX source to Bluetooth earphones, and Herfair 5.4 also works as a receiver for the opposite direction.
what kind of headphones for airplane
You want Bluetooth headphones or earbuds plus a 3.5mm-to-Bluetooth adapter. If you fly long-haul, pick the adapter with the longer listed battery life and a charging option — that's Herfair 5.4 at 18+ hours with USB-C use-while-charging, versus Loccess Airplane's simpler battery-powered design.
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