How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want the flight adapter that covers both modern and older planes out of the box and lasts the longest on a single charge, choose PYYUWF 5.4; if you want a lighter, simpler dual-headphone transmitter for sharing a movie with a travel partner, choose LENDAWAY 5.3.
• LENDAWAY 5.3 biggest strength: Dual pairing in TX mode so two people can share audio from an in-flight screen, plus a light 0.06 kg body and a built-in microphone for hands-free calls in RX mode.
• LENDAWAY 5.3 biggest trade-off: No dedicated airplane two-prong adapter mentioned in the data sheet, so older aircraft armrest jacks may need a separate plug.
• PYYUWF 5.4 biggest strength: A bundled dual-prong airplane adapter for older planes, 20 hours of battery, and aptX low latency rated at 39 ms for lip-synced in-flight movies.
• PYYUWF 5.4 biggest trade-off: Slightly narrower layout focus — it's built around push-button control and a travel-first design rather than touch controls.
• Who each is for: LENDAWAY 5.3 fits the casual flyer who wants to pair two headsets with less fuss; PYYUWF 5.4 fits the frequent long-haul traveler who wants guaranteed compatibility on any aircraft.
LENDAWAY 5.3 is a 2-in-1 Bluetooth 5.3 transmitter and receiver built around the idea of sharing audio. In TX mode it can connect two Bluetooth headphones or earbuds at the same time, which is genuinely useful on a flight when you and a partner want to watch the same in-flight movie without splitting a single earbud. The Bluetooth 5.3 chip supports A2DP, AVRCP and HFP, and the range is listed at 10 m / 33 ft, so you can leave the adapter on the tray table and still move around a bit.
I'd recommend LENDAWAY 5.3 for the traveler who mostly flies modern aircraft with a single 3.5 mm jack and wants an easy way to share audio with a companion. Skip it if you frequently fly older planes with two-prong armrest jacks, or if you need the longest possible battery for a transatlantic hop.
PYYUWF 5.4: Who It's For
PYYUWF 5.4 is designed around the flight itself. The kit ships with a dual-prong airplane headphone adapter, so you can plug straight into a modern single 3.5 mm AUX jack or bridge through the two-prong adapter on an older aircraft armrest. That single inclusion is the biggest practical difference for anyone who flies a mix of aircraft and doesn't want to gamble on the seat's jack.
Battery is the other headline: 20 hours of continuous playback, with power management that the sheet says cuts consumption, a 4-level LED gauge so you can see where you stand, and a 2-hour USB-C charge. The Bluetooth 5.4 chipset is paired with aptX low latency rated at 39 ms, which matters for lip-sync on in-flight movies and for gaming on a handheld console. Dual pairing is handled with a single button and dedicated '1' and '2' indicator lights, and the sheet claims two headsets connect in under 3 seconds.
The unit is pocket-sized at 2.56" x 0.49" x 1.16" and weighs less than an ounce. It also flips into RX mode, so it can turn a wired car stereo, home receiver or wired speaker into a Bluetooth target for your phone. I'd recommend PYYUWF 5.4 for the frequent flyer, the long-haul traveler, or anyone who wants the adapter to just work regardless of the plane. Skip it if you don't care about the two-prong adapter and prefer touch controls over push buttons.
Side-by-Side: Which Should You Choose?
• Best for older aircraft with two-prong jacks → PYYUWF 5.4. The bundled airline adapter removes the guesswork.
• Best for long-haul battery life → PYYUWF 5.4. 20 hours versus 14.5 hours single-pairing on LENDAWAY is a real gap on a transatlantic or transpacific route.
• Best for lip-synced movies and gaming → PYYUWF 5.4. aptX low latency at 39 ms is the spec that matters here.
• Best for hands-free calls from a wired car stereo → LENDAWAY 5.3. It has a built-in microphone and RX-mode call controls.
• Best for the smallest, lightest carry → LENDAWAY 5.3. 0.06 kg and a slim 0.44" profile.
• Best for knowing your battery state → PYYUWF 5.4. The 4-level LED gauge beats a single low-battery warning light.
• Best for touch control fans → LENDAWAY 5.3. It uses touch control; PYYUWF 5.4 uses push buttons.
If I were buying one of these strictly for flights, I'd pick PYYUWF 5.4. In my opinion, the bundled two-prong airplane adapter, the 20-hour battery, and the 39 ms low-latency mode are the three things that actually matter when you're buckled into a seat and can't troubleshoot. LENDAWAY 5.3 is a solid, lighter alternative if you mainly want to share one screen with a partner and you fly modern planes, but for the broadest flight compatibility out of the box, PYYUWF 5.4 is the one I'd put in my carry-on.
are bluetooth headphones allowed on flights
Yes. Airlines generally permit Bluetooth headphones in the cabin, and the usual limitation is connecting them to the seat's entertainment system, which is why a transmitter like these two is useful. Both LENDAWAY 5.3 and PYYUWF 5.4 are built to bridge that gap.
do bluetooth headphones work on flights
Your headphones work fine — the aircraft's wired system is the problem, since it sends audio over a 3.5 mm or two-prong jack. A transmitter plugged into that jack turns it into a Bluetooth signal your headphones can receive. PYYUWF 5.4 includes the two-prong adapter for older planes; LENDAWAY 5.3 relies on the standard 3.5 mm connection.
do delta flights have bluetooth for headphones
Some newer aircraft and updated seat-back systems support Bluetooth audio pairing directly, but it varies by aircraft and cabin, so you can't count on it. Carrying a transmitter like these two is the reliable way to use your own headphones either way.
are bluetooth headphones ok on flights for takeoff and landing
Cabin rules on headphone use during taxi, takeoff and landing vary by airline and crew, and short-range Bluetooth is generally treated as a low-risk personal device. The safest approach is to follow the crew's instructions for each phase of the flight and keep your adapter stowed until they say otherwise.
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