We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 6 min read · Independent comparison
If you want one wired set that covers several people, school bags and long travel days at once, choose iClever HS27; if you need a tiny wireless pair that disappears into your ear for sleep, work and commuting, choose goazzzl Flat Sleep Earbuds.
• iClever HS27 – biggest strength: a five-pack of wired, over-ear, swivel-foldable headphones with a 3.5 mm jack, a built-in mic and 40 mm dynamic drivers — instant audio for a whole household or classroom, no charging involved.
• iClever HS27 – biggest trade-off: it's wired and bulky compared to a pocket-sized earbud, and the shared Sound Isolation design means it blocks some outside noise rather than offering active noise cancelling.
• goazzzl Flat Sleep Earbuds – biggest strength: a dual set in one pack — ultra-flat sleep earbuds for side sleepers plus mini in-ear buds for work — with Bluetooth 5.4 wireless freedom and a charging case.
• goazzzl Flat Sleep Earbuds – biggest trade-off: the buds themselves run about 6 hours per charge, so longer trips depend on rotating the second pair or topping up in the case, and the flat sleep shape trades some passive isolation for comfort.
• Who each pick is for: iClever HS27 for families, students and anyone who wants plug-and-play wired headphones in multiples; goazzzl Flat Sleep Earbuds for side sleepers, small-ear-canal users and travellers who want something invisible.
The HS27 is a five-pack of over-ear kids' headphones built around a wired 3.5 mm jack. That single design decision tells you almost everything: no pairing, no battery, no charging case to lose. Plug into a tablet, a school Chromebook, an in-flight entertainment jack or a handheld console and it just works. For travel, that's quietly a big deal — a wired set can't die mid-flight because you forgot to charge it, and there's nothing to pair while you're juggling a boarding pass.
SafeSound Tech 3.0 is the feature parents will care about most, and the age range covers both kids and adults, so it isn't strictly a child-only product. Who should buy it: families, K-12 students doing online learning, teachers stocking a classroom, or anyone who wants spare wired headphones for travel and doesn't want to think about batteries. Who should skip it: a side sleeper, someone who wants true wireless freedom, or a traveller who needs active noise cancelling. In my opinion, this is the pack to buy when the goal is "everyone has a working pair," not "one premium pair."
goazzzl Flat Sleep Earbuds: Who It's For
The goazzzl set solves a very specific problem: lying on your side with earbuds in. The sleep pair is built ultra-flat and low-profile so it doesn't press into your ear against a pillow, which is the classic reason people give up on sleep earbuds. The second pair in the same pack is a mini in-ear design weighing about 0.1 oz, made for small ear canals and meant to sit deep and nearly invisible — useful at work, on calls, or anywhere you'd rather not advertise that you're wearing earbuds.
Connectivity is Bluetooth 5.4, so there's no cable to snag on a seatbelt or a tray table. The charging case has an LED display, and the dual-bud setup means you can use one pair while the other charges — a genuinely practical answer to battery anxiety on a long travel day. Battery life is listed at about 6 hours per charge, so on a full travel day you're leaning on that rotation or a top-up in the case. Noise control is Sound Isolation, and the specs list waterproofing, which is handy for workouts, rain and general travel wear. Touch controls handle playback and calls, and the three-year manufacturer warranty is generous for this category.
Who should buy it: side sleepers, light sleepers who want soft sound for white noise or audiobooks, people with small ear canals, and commuters or flyers who want something tiny and wireless. Who should skip it: anyone who wants one pair to share with a kid, or someone who prefers the certainty of a wired connection. In my opinion, the flat sleep shape is the whole reason to choose this set over a normal pair of earbuds.
Side-by-Side: Which Should You Choose?
• Best for sleep and side sleeping → goazzzl Flat Sleep Earbuds. The ultra-flat shape is purpose-built for lying down; the HS27's over-ear frame isn't.
• Best for wireless freedom while travelling → goazzzl Flat Sleep Earbuds. Bluetooth 5.4 means no cable to a seat-back jack or phone.
• Best for zero-charging reliability → iClever HS27. Wired means it never runs out, which matters on long flights and in classrooms.
• Best for small ear canals → goazzzl Flat Sleep Earbuds. The mini buds are designed to sit deep and stay put.
• Best for packing multiple bags → iClever HS27. The swivel-foldable design plus a five-pack means you can leave a pair everywhere.
• Best for calls and online class → iClever HS27. The built-in mic and remote handle voice without extra gear.
• Best for discreet all-day wear → goazzzl Flat Sleep Earbuds. The near-invisible fit is the point of the mini pair.
For travel specifically, I'd buy the goazzzl Flat Sleep Earbuds. Wireless, pocket-sized, a charging case that keeps a spare pair ready, and a flat shape that works on a plane, in a hostel bed or at a desk — that's the more versatile travel companion in my opinion. I'd pick the iClever HS27 instead if the trip involves kids, a classroom or several people who each need their own pair, because five foldable wired headphones with a mic solve that problem in one go.
FAQ
what is the best headphones for traveling
what are good headphones for travel
Good travel headphones are compact, comfortable for long stretches and easy to power or pack. The HS27 folds flat, runs off a 3.5 mm jack and needs no battery; the goazzzl set packs two pairs of earbuds, a case and Bluetooth 5.4, with about 6 hours per charge so you can rotate pairs.
how to pack headphones for travel
Fold the headband so the earcups lie flat, then tuck them in an outer pocket where they won't get crushed — the HS27's swivel-foldable design is made for exactly that. The goazzzl earbuds pack even smaller: drop both pairs in the charging case, and the case goes in a pocket or a small pouch.
how to wrap headphones for travel
For wired headphones like the HS27, don't wrap the cable tightly around the earcups — that stresses the 3.5 mm jack over time. Loosely loop the cable and secure it, or fold the headphones flat and let the cord sit free. Wireless earbuds avoid the issue entirely: the goazzzl buds go straight back in the case.
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See also: MUSICOZY Sleep Headphones vs CUAUUO Flat Sleep Earbuds, LC-dolida Sleep Headphones vs Poounur Earbuds, MMUSS Sleep Headphones Eye vs Xmenha Sleep Earbuds