How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want earbuds that protect your hearing on the job site, choose ISOtunes Xtra 2.0; if you need to turn a plane's old headphone jack into wireless audio, choose Avantree Voyager Airplane. These two products live in completely different worlds. One is personal protective equipment that happens to play music. The other is a tiny travel gadget that upgrades whatever headphones you already own.
• ISOtunes Xtra 2.0, biggest strength: a genuine 27 dB NRR noise-isolating earplug design paired with an 85 dB volume limiter — it protects your ears first and streams audio second.
• ISOtunes Xtra 2.0, biggest trade-off: it's a self-contained set of in-ear buds, so it can't make your existing headphones wireless and it isn't built for airplane seat-back jacks.
• Avantree Voyager Airplane, biggest strength: it converts any 3.5mm AUX or dual-prong jack into Bluetooth 5.4 audio with an OLED display, aptX Adaptive and Auracast support.
• Avantree Voyager Airplane, biggest trade-off: it's a transmitter only — classic Bluetooth handles one headset at a time, it needs headphones that support aptX Adaptive for the best latency and quality, and it won't work with hearing aids, phones or TVs.
• Pick ISOtunes Xtra 2.0 if you work in loud environments and want hearing protection with music built in.
• Pick Avantree Voyager Airplane if you travel and want to use your own Bluetooth headphones with in-flight entertainment.
The Xtra 2.0 is a safety product before it is a pair of earbuds. The memory foam eartips expand like earplugs and block 27 dB of ambient sound with a physical barrier — that's noise isolation, not active noise cancellation. Then SafeMax technology caps the audio going into your ear at 85 dB. That combination is the whole point: you get your podcast or playlist without the environmental roar and without the volume creeping up to unsafe levels.
The specs back up the work-site framing. IP67 means it shrugs off water, sweat and dust. Battery life runs up to 11 hours on a charge, which covers a long shift. Bluetooth 5.0 gives you roughly 30 feet of range, so you can set your phone down and keep working. The magnetic earbuds snap together to stay secure and pause playback, and the controls are simple push buttons rather than fussy touch surfaces — easier with gloves on. It ships with a protective case and runs a standard 20 Hz–20,000 Hz dynamic driver.
So who should buy it? Anyone whose day involves sustained loud noise — workshops, landscaping, machining, job sites — and who wants music or calls without pulling their earplugs in and out. The noise-cancelling mic handles calls. Who should skip it? If you mostly want to upgrade audio on a flight, or you want to keep using the premium headphones you already own, this isn't the tool. It's a standalone in-ear system, not an adapter, and its priority is protection over audiophile tuning.
The Voyager solves one specific, annoying problem: airplane seat-back entertainment still runs on wires. Plug the Voyager into a 3.5mm AUX or dual-prong jack and it transmits that audio over Bluetooth to your AirPods, Bose or other Bluetooth headphones. No dongle dangling from your headset, no airline-supplied wired cans. It also works with gym equipment and any other 3.5mm AUX source, so it isn't strictly a flight-only device.
The standout feature is the OLED display. Instead of the usual blind-pairing guesswork, you can see the connected device, battery level and audio status right on the screen. That's a genuinely practical touch when you're crammed in a seat with the lights dimmed. Under the hood it runs Bluetooth 5.4 with a Qualcomm chipset and aptX Adaptive, plus Auracast support for audio sharing with compatible earbuds and headphones. It's also firmware upgradable, which gives it some useful shelf life.
Side-by-Side: Which Should You Choose?
• Best for hearing protection → ISOtunes Xtra 2.0. A 27 dB NRR and an 85 dB output cap is a safety spec the Voyager simply doesn't have.
• Best for flights and travel → Avantree Voyager Airplane. It's purpose-built to make airline and AUX audio wireless.
• Best for battery life → ISOtunes Xtra 2.0. Up to 11 hours of playback on one charge.
• Best for durability in harsh conditions → ISOtunes Xtra 2.0. IP67 water, sweat and dust resistance is built for job sites.
• Best for using your own premium headphones → Avantree Voyager Airplane. It transmits to the headphones you already love instead of replacing them.
• Best for group listening → Avantree Voyager Airplane. Auracast mode shares audio, whereas classic Bluetooth is one headset at a time.
• Best for a no-guess setup → Avantree Voyager Airplane. The OLED screen shows device, battery and audio status at a glance.
• Best for hands-on, gloved control → ISOtunes Xtra 2.0. Push-button media controls beat touch surfaces when your hands are busy.
In my opinion, these aren't rivals so much as answers to two different questions, so I'd buy based on the job. If your priority is protecting your hearing while you work, I'd choose the ISOtunes Xtra 2.0 — the 27 dB NRR, 85 dB limit and IP67 build make it the more purpose-built tool for loud environments. If your priority is untangling airplane audio, I'd choose the Avantree Voyager Airplane, because the OLED display, Bluetooth 5.4 and aptX Adaptive make wired seat-back audio genuinely wireless. Buy the one that matches your actual problem.
FAQ
No — it isolates noise. The memory foam eartips expand like earplugs to block 27 dB of environmental sound with a physical barrier, rather than using active noise cancellation to generate an inverse sound wave.
In classic Bluetooth mode it supports only one headset. For group listening you need to switch to Auracast mode, which requires Auracast-compatible headphones or receivers.
Both are sold on Amazon, and since pricing shifts, use the button on this page to check the current price on Amazon before deciding. Match the product to your need first — protection versus wireless flight audio — then confirm the price.
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