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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-18 · 7 min read · Independent comparison
• YOCOWOCO Adapter's biggest strength: it is purpose-built for the Bose QC15 (and some QC2 units), adding Bluetooth 5.0, aptX/aptX HD, a built-in mic, and on-board volume and call buttons to headphones you already own.
• YOCOWOCO Adapter's biggest trade-off: it only works with the Bose QC15 — not the QC25, QC35, or anything else — and it is a receiver, not a transmitter, so it can't feed audio out to other headphones.
• Avantree Voyager Airplane's biggest strength: a Bluetooth 5.4 transmitter with an OLED display, aptX Adaptive, and Auracast support that turns an airplane seat-back screen (or gym machine, or any 3.5mm output) into a wireless signal for your own earbuds.
• Avantree Voyager Airplane's biggest trade-off: it's strictly a transmitter — it does not work with hearing aids, phones, tablets, TVs without a 3.5mm AUX out, or musical instruments, and in classic Bluetooth mode it pairs with only one headset at a time.
• Pick YOCOWOCO Adapter if you own Bose QC15 headphones and want to cut the cord without buying new headphones.
• Pick Avantree Voyager Airplane if you travel with AirPods or Bluetooth headphones and want to use them with in-flight entertainment.
The YOCOWOCO Adapter is a niche product, and it is proud of it. The very first thing its documentation says is that it is only compatible with the Bose QuietComfort 15 and that you should verify your model before ordering. That's not marketing hedging — it's a genuine warning, because this adapter will not work with the QC25 or any other model or brand. If you own QC15s, though, this little 17-gram module slots into the headphone's jack and effectively turns a wired, discontinued headphone into a modern wireless one.
What it does best is consolidate everything onto the headphone itself. There's a built-in microphone for calls, three physical buttons for play/pause, answer/end, and volume, and a 10-hour battery that recharges in about 2 hours. You don't have to remove the adapter to charge it, which is a small design decision that matters a lot in daily use — you can leave it mounted and just plug in. On the wireless side you get Bluetooth 5.0 with Dual Link, so it can hold two paired devices at once, plus aptX and aptX HD for near-lossless audio and aptX LL for better audio-video sync. One honest caveat from the specs: aptX only kicks in when the paired device also supports it, so a phone without aptX will fall back to standard codecs. The ABS plastic housing and black finish are designed to follow the QC15/QC2 arc, so it looks like part of the headphone rather than a dongle hanging off it.
Buy it if you own Bose QC15s and want wireless audio, call handling, and volume control without replacing the headphones. Skip it if you own any other headphone model, if you need to transmit audio to headphones, or if you want to use it with a TV or airplane jack — that's not what it does. It's also worth noting the QC2 mention: it may fit some QC2 units with an identical jack, but that's explicitly not guaranteed, so compare your jack to the product images first.
The Avantree Voyager Airplane is the opposite kind of tool: it doesn't care what headphones you own, it cares what you're plugging into. Connect it to an airplane entertainment system, a gym machine, or any other 3.5mm AUX source, and it transmits that audio wirelessly to your AirPods, Bose headphones, or any Bluetooth earbuds. It handles both the single 3.5mm plug and dual-prong airplane jacks, so it covers the two connector types you'll actually meet on a plane.
The standout feature is the OLED display. Anyone who has fumbled with a cheap transmitter in a dark cabin knows the pain of "blind pairing" — pressing a button and hoping. Here you see the connected device, battery level, and audio status directly on screen, so you know whether you're actually connected before the movie starts. Under the hood it runs Bluetooth 5.4 with a Qualcomm chipset and aptX Adaptive, and it's Auracast-ready, meaning it can broadcast to compatible earbuds and receivers for shared listening. It's also firmware upgradable, which is unusual at this end of the accessory market and means the product can improve over time.
The limitations are just as clearly documented, and you should read them carefully. This is not for hearing aids, phones, tablets, musical instruments, or TVs without a 3.5mm AUX output — if you use Auracast-enabled hearing aids, the manufacturer points you to a different model, the Voyager HA. Classic Bluetooth mode supports only one headset at a time, so group listening requires switching to Auracast with compatible gear. And low latency plus high audio quality depend on your headphones supporting aptX Adaptive or aptX-HD — with plain AirPods in classic mode, you get a normal Bluetooth connection, not the low-latency path.
Buy it if you travel with your own Bluetooth headphones or earbuds and want to use them with in-flight screens. Skip it if you need a receiver for wired headphones, if you want to connect hearing aids, or if your intended source has no 3.5mm output.
• Best for reviving old wired headphones → YOCOWOCO Adapter. It's the only one of the two that receives Bluetooth and plays it into headphones.
• Best for airplane entertainment → Avantree Voyager Airplane. It transmits from a seat-back jack to your own earbuds, including dual-prong connectors.
• Best for call handling → YOCOWOCO Adapter. Built-in mic plus answer/end and volume buttons on the adapter itself.
• Best for knowing what's going on → Avantree Voyager Airplane. The OLED display shows device, battery, and audio status instead of relying on blinking lights.
• Best for newer wireless standards → Avantree Voyager Airplane. Bluetooth 5.4, aptX Adaptive, Auracast, and firmware updates versus Bluetooth 5.0 and aptX HD.
• Best for multi-device convenience → YOCOWOCO Adapter. Dual Link lets it stay paired to two devices at once; the Voyager handles one classic Bluetooth headset at a time.
• Best for shared listening → Avantree Voyager Airplane in Auracast mode with compatible earbuds; the YOCOWOCO adapter is strictly a single-listener receiver.
• Best match to a specific headphone → YOCOWOCO Adapter, but only if that headphone is a Bose QC15 (or a QC2 with an identical jack).
In my opinion, the right pick comes down to one question: do you already own Bose QC15s, or do you own Bluetooth headphones you want to use on a plane? If it's the former, I'd buy the YOCOWOCO Adapter — it's the only one of the two that actually adds wireless audio, a mic, and controls to that specific headphone, and the 10-hour battery and 2-hour charge make it genuinely usable day to day. If it's the latter, I'd buy the Avantree Voyager Airplane, because the OLED display, aptX Adaptive, and Auracast support make it the more future-proof travel transmitter, and it works with whatever Bluetooth headphones you already carry. Neither is a universal answer, and buying the wrong one means it simply won't do the job.
No. It is designed specifically for the Bose QuietComfort 15 and will not work with the QC25 or any other model or brand. It may fit some QC2 units with an identical jack, but that isn't guaranteed.
It works with airplane entertainment systems that have a 3.5mm AUX or dual-prong jack, which covers the standard seat-back setups. It does not work with sources that have no 3.5mm output.
In classic Bluetooth mode it supports one headset only. For group listening you need to switch to Auracast mode, which requires Auracast-compatible earbuds, headphones, or receivers.
For both, yes — the advanced codecs only activate when the paired device also supports them. The YOCOWOCO needs an aptX or aptX HD source, and the Voyager needs aptX Adaptive or aptX-HD headphones for low latency and high audio quality. Otherwise both fall back to standard Bluetooth audio.
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