We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-17 · 7 min read · Independent comparison
If you want one pair of headphones that does everything on its own — 120 hours of playback, three EQ modes and a built-in mic — choose Picun B8; if you need a tiny gold-plated adapter that lets your favourite wired headphones plug into an airplane seat's dual-jack audio system, choose SQERO Airplane Headphone Jack.
• Picun B8 — biggest strength: a 1000mAh battery rated for more than 120 hours of playback, plus dual 40mm dynamic drivers and three EQ modes (Pop / Bass Boost / Rock) you cycle with a double press of the EQ button.
• Picun B8 — biggest trade-off: it's a full-size over-ear headphone with no active noise cancellation ("noise control: none"), and the touch controls take some getting used to compared with plain buttons.
• SQERO Airplane Headphone Jack — biggest strength: a dual 3.5mm male to single 3.5mm female adapter with gold-plated plugs, built to reduce audio loss and survive repeated plugging and pulling.
• SQERO Airplane Headphone Jack — biggest trade-off: it does exactly one job. No battery, no drivers, no microphone, and the manufacturer itself notes that a small number of aircraft seats won't work even with the adapter.
• Who each pick is for: Picun B8 for someone who wants a self-contained wireless headphone for travel, commuting, study and calls; SQERO for someone who already owns wired headphones and wants to keep using them on a plane, in a gym, or with older audio gear.
The Picun B8 is built around one idea: keep the music going and don't make the user think about charging. The 1000mAh cell is rated for more than 120 hours of continuous playback — that's roughly 30 days if you listen about four hours a day. For a commuter, a student, or someone packing for a long trip, that removes the nightly charging ritual almost entirely.
The audio side is more thoughtful than you'd expect at this tier. Two 40mm dynamic drivers handle the sound, and the three EQ modes let you tilt the tuning without touching your phone: Pop for a balanced everyday listen, Bass Boost when you want low-end weight, Rock for a brighter, punchier presentation. Bluetooth 5.3 keeps the connection stable up to about 33 feet, and if you wander out of range the headphone disconnects — but reconnect automatically within five minutes once you're back in range. There's also a 3.5mm jack and an included audio cable, so you can go wired when the battery is flat or when you're on a plane seat that still uses an old-style socket.
Buy it if you want a single headphone for travel, the gym, movies, gaming and calls, and you value battery life and EQ flexibility above all. Skip it if active noise cancellation is non-negotiable, or if you dislike touch controls and want physical buttons only.
SQERO Airplane Headphone Jack: Who It's For
The SQERO Airplane Headphone Jack solves a specific, annoying problem. Many airline seats feed audio through a dual-plug socket that no normal headphone cable fits. This adapter takes those two 3.5mm male plugs and turns them into one standard 3.5mm female jack, so the wired headphones you already own — the ones you actually like — work again. One plug, and you're listening.
The build is the whole story here. The plugs are gold-plated, which the manufacturer says reduces audio loss and preserves high-fidelity stereo sound, and the materials are chosen to tolerate being pushed in and pulled out again and again. At 0.02 kg it's essentially weightless, so it disappears into a pocket, a tech pouch or the front compartment of a carry-on. That same portability is why it isn't only a flight accessory: it also connects wired headphones to older audio equipment at the gym, in a hotel room or at home.
Be honest about the limits. This is a passive adapter — no battery, no drivers, no microphone, no Bluetooth of its own despite the "wireless transmitter receiver" phrasing in the listing title. It also carries no warranty. And the manufacturer openly warns that a very small number of aircraft seats won't work even with it, so it isn't a universal guarantee. Treat it as a cheap, well-made insurance policy for your next flight rather than a piece of audio gear.
Buy it if you already own good wired headphones and fly often, or you regularly plug into legacy audio sockets. Skip it if you're looking for an actual headphone, or if you fly exclusively on aircraft with standard single-jack entertainment systems.
Side-by-Side: Which Should You Choose?
• Best sound flexibility → Picun B8. Dual 40mm dynamic drivers plus Pop / Bass Boost / Rock EQ modes give you tunable sound without an app.
• Best for calls and voice control → Picun B8. Built-in microphone, touch-to-answer and a voice-assistant shortcut; the SQERO has no mic at all.
• Best for flying with your own wired headphones → SQERO. Dual 3.5mm male to 3.5mm female is exactly the airline-seat fix most travellers need.
• Best for durability per gram → SQERO. Gold-plated plugs and pull-resistant construction at 0.02 kg — you'll forget it's in your bag.
• Best for the gym or old stereo gear → SQERO. It reconnects wired headphones to older audio equipment, not just plane seats.
• Best all-in-one purchase → Picun B8. It's a complete headphone; the SQERO only makes sense alongside a headphone you already own.
• Best low-commitment add-on → SQERO. If you're happy with your current wired set, this is the cheaper way to make it travel-proof. Check the current price on Amazon before you decide.
In my opinion, the Picun B8 is the better buy for most people. It's a complete product — 120+ hours of battery, three EQ modes, Bluetooth 5.3, a 3.5mm wired fallback, a microphone and a foldable design — so it covers commuting, travel, study and calls without anything else in your bag. The SQERO adapter is genuinely good at what it does, but it only matters if you already own wired headphones you love and fly often. If that's you, buy both: the B8 for everyday listening and the SQERO as flight insurance. If you're choosing one, choose the B8.
Yes — the 120+ hour battery rating means a single charge covers even very long trips, and the included 3.5mm cable lets you plug in wired if the seat socket is a standard single jack. There's no active noise cancellation, so engine noise is only reduced by the over-ear padding.
It works with any headphone that has a standard 3.5mm plug, because it converts an airline's dual-jack socket into a single 3.5mm female input. The manufacturer does warn that a very small number of aircraft seats won't work even with the adapter.
Not necessarily. The B8 ships with a 3.5mm audio cable, but that cable has a single plug — the SQERO is what bridges the gap on planes that use a dual-plug seat socket. If you fly often, it's a sensible companion.
Buy the Picun B8 first if you need an actual headphone, since it stands alone for travel, work and calls. Buy the SQERO first only if you already own wired headphones and your next trip involves an older in-flight audio system. Either way, check the current price on Amazon before ordering.
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