We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-27 · 9 min read · Independent comparison
If you want one device that turns an airplane seat screen into wireless audio for two people at once, choose Avantree SoundJet R1-25Hr; if you need flat earbuds that disappear into your ears for sleeping and quiet work, choose goazzzl Flat Sleep Earbuds. These two products only look like rivals because both touch the word "travel." In reality they solve completely different problems. One is a transmitter that feeds audio to the headphones you already own; the other is a pair of earbuds you wear. Read the specs carefully and the decision makes itself.
• Avantree SoundJet R1-25Hr — biggest strength: it takes audio from a 3.5 mm output (like an airline seat screen) and sends it wirelessly to Bluetooth headphones, and it can pair two pairs at once so two travelers share one movie.
• Avantree SoundJet R1-25Hr — biggest trade-off: it is a transmitter only. It is not a Bluetooth receiver, and Avantree states it is not designed for phone calls, musical instruments, or TVs without a 3.5 mm headphone output.
• goazzzl Flat Sleep Earbuds — biggest strength: two sets of earbuds in one pack — ultra-flat sleep earbuds built for side sleepers plus mini earbuds for work — with Bluetooth 5.4, a 66-hour battery figure, and a wireless charging case.
• goazzzl Flat Sleep Earbuds — biggest trade-off: noise control is sound isolation rather than active cancellation, and the listed average battery life is 6 hours per charge, so the 66-hour figure depends on the charging case.
• Who each pick is for: Avantree SoundJet R1-25Hr is for the traveler with wired seat-back entertainment and their own Bluetooth headphones; goazzzl Flat Sleep Earbuds are for the side sleeper, light sleeper, or quiet office worker who wants earbuds that stay out of the way.
The SoundJet R1 is best understood as a bridge. Airline seat screens still hand you audio through a 3.5 mm jack, and your AirPods or Bose headphones speak Bluetooth. This adapter sits in the middle: you plug the transmitter into the seat screen, gym machine, tablet, or any analog audio output, and it streams that audio to your headphones. The included dual-prong airline adapter covers both common seat-jack formats, which is the detail that matters most on a long-haul flight, because a single-prong adapter will not fit every armrest.
Its standout travel feature is sharing. You can pair two Bluetooth headphones or earbuds at the same time, with dedicated connection indicators showing when each pair is ready. On a flight with a companion, that means two people watching one seat screen with their own headphones instead of splitting a cheap pair of airline buds. Avantree also leans on its wireless-audio background here, and the spec sheet backs the claim with a Qualcomm chipset supporting aptX Adaptive and aptX HD for compatible headphones. AirPods and other headphones simply connect using whichever codec both devices support, so you are never locked out — you just may not get the higher-quality codec on every model.
Battery is the other reason this belongs in a carry-on. Avantree lists up to 25 hours of listening on one charge, and USB-C pass-through charging lets you keep listening while the adapter tops up, so a long flight does not have to interrupt the movie. Bluetooth 5.3 and a 4 g lithium battery keep the whole thing light, and the plastic/PVC enclosure comes in a green colorway.
goazzzl Flat Sleep Earbuds: Who It's For
The goazzzl set takes the opposite approach: instead of adapting the audio source, it adapts what goes in your ears. The headline idea is a two-for-one — you get mini earbuds for work and daily use plus ultra-flat sleep earbuds for night, in one pack. That is genuinely useful for the person who currently owns a pair of sleep headphones and a separate pair of small earbuds and is tired of juggling both.
The sleep pair is the reason to look here. The shape is deliberately super-flat and low-profile so it will not press into your ear when you lie on your side, which reduces pressure and keeps your ears comfortable through the night. If you are a light sleeper or sensitive to pressure, that geometry is the whole point — no sore ears, no constant rolling to find a comfortable position. The work pair is the other half of the story: mini earbuds at roughly 0.1 oz, ergonomic, sized for small ear canals, sitting deep and nearly invisible. Worn at a desk, they stay secure through long hours and do not stick out and draw attention.
Battery handling is where the dual-pair design pays off. You can use one pair while the other charges, so there is always a backup ready — no waiting around for a charge and no dead earbuds mid-task. The pack includes a wireless charging case, a USB-C charging cable, both sets of earbuds, and a manual, and goazzzl lists a 3-year manufacturer warranty. Connectivity is Bluetooth 5.4, which is a current-generation spec, and the earbuds are rated waterproof. The listed battery average life is 6 hours per charge; the 66-hour headline figure is the total you get by cycling through the charging case.
Sound is tuned for calm rather than punch. goazzzl describes clear, soft, non-harsh audio suited to white noise, music, or audiobooks — the kind of sound that helps you settle rather than the kind that makes you turn it up. Noise control is sound isolation, not active noise cancellation, so plan on blocking some ambient noise by fit alone, not by electronics. Impedance is 38 ohm, controls are touch-based, and the color is beige.
Who should buy it: side sleepers, light sleepers, and anyone who wants discreet earbuds for work who would rather buy one product than two. Who should skip it: anyone who needs active noise cancellation, and anyone who wants maximum loudness or bass slam rather than soft, relaxing audio.
Side-by-Side: Which Should You Choose?
• Best for sharing a movie with a travel companion → Avantree SoundJet R1-25Hr. Two pairs of Bluetooth headphones can connect at once, with separate connection indicators.
• Best for side sleepers → goazzzl Flat Sleep Earbuds. The ultra-flat sleep pair is shaped specifically so it will not press into your ear when you lie down.
• Best for discreet earbuds at work → goazzzl Flat Sleep Earbuds. The mini pair sits deep, stays secure, and is described as almost invisible at about 0.1 oz.
• Best for battery flexibility → goazzzl Flat Sleep Earbuds. The dual-pair setup plus wireless charging case means one pair can charge while you use the other, with a 66-hour total figure.
• Best for battery on a single flight → Avantree SoundJet R1-25Hr. Up to 25 hours on one charge, and USB-C pass-through charging means you can keep listening while it charges.
• Best for phone calls → neither, by design. Avantree states the SoundJet R1 is not designed for phone calls; the goazzzl set emphasizes sleep and focus listening rather than call features.
• Best for active noise cancellation → neither. Avantree's job is transmission, and goazzzl relies on sound isolation rather than ANC.
If I were packing for a long-haul flight with a partner, I would buy the Avantree SoundJet R1-25Hr. It solves a problem you cannot solve any other way — turning a seat screen's 3.5 mm output into two simultaneous Bluetooth streams — and the 25-hour battery with pass-through charging matches the reality of a transoceanic trip. But that is a travel-tool recommendation, not a headphone recommendation. If your actual need is falling asleep on your side or wearing something invisible in the office, the goazzzl Flat Sleep Earbuds are the more sensible pick, because the flat sleep design and the dual-pair battery setup address a need the Avantree device simply was not built for. Buy for the problem you have, not the category you searched.
what is the best headphones for traveling
There is no single answer, because it depends on what you bring along. If your travel involves airline seat screens with 3.5 mm jacks and you already own Bluetooth headphones, the Avantree SoundJet R1-25Hr is the travel accessory that makes those headphones work on the plane, with up to 25 hours per charge. If your travel is hotel rooms and sleeping on your side, the goazzzl Flat Sleep Earbuds fit that use case better.
what are good headphones for travel
Good travel audio gear is compact, holds a charge, and matches how you actually listen. The goazzzl set packs two earbud styles, a wireless charging case, Bluetooth 5.4, and a 66-hour total battery figure, and the flat pair is designed not to press into your ears when you lie down. The Avantree SoundJet R1-25Hr is good travel gear of a different type: a small transmitter that sends seat-screen audio to the headphones you already own.
how to pack headphones for travel
Keep the gear you will reach first in your personal item rather than a checked bag — a transmitter or a charging case is no use in the overhead bin. For the Avantree SoundJet R1-25Hr, keep the dual-prong airline adapter with the transmitter so it is ready the moment you sit down, and note that USB-C pass-through charging means you can top it up from a seat outlet. For the goazzzl set, the wireless charging case holds both pairs, so the two earbud styles stay together and one can charge while the other is in use.
how to wrap headphones for travel
The short answer: do not wrap them tightly. Coiling a cable or cord around a device stresses the connectors, and both of these products are better off with the cord loosely looped. The Avantree SoundJet R1-25Hr is small and plastic-bodied with a 3.5 mm connector at one end, so a loose loop and a small pouch protect the plug. For the goazzzl Flat Sleep Earbuds, the charging case is your protection, so the real job is simply returning each pair to the case after use.
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