We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-23 · 7 min read · Independent comparison
If you want a bulk set of simple wired on-ear headphones for a classroom, library or shared listening space, choose Flutesan 20; if you need a single pair of kid-focused on-ear headphones with a safe volume ceiling and a foldable travel design, choose LORELEI E7.
• Flutesan 20 — biggest strength: It comes as a set of 20 identical black wired on-ear headphones with adjustable headbands, so you can equip a whole group at once with the same straightforward design.
• Flutesan 20 — biggest trade-off: It is built for shared, basic listening rather than personal audio, and there is no volume limiter or inline microphone called out in the specs.
• LORELEI E7 — biggest strength: Kid-first safety features — an 85dB everyday volume limit that can be raised to 94dB for noisy places, plus a built-in microphone and 90° swivel ear cups.
• LORELEI E7 — biggest trade-off: It is sold as a single pair, so it does not solve the "equip everyone" problem, and its kid-oriented styling and volume cap are not aimed at listeners who want unrestricted output.
• Who each pick is for: Flutesan 20 for schools, libraries, gyms or any setting that needs many identical pairs; LORELEI E7 for a parent buying one pair for a child who studies, travels and takes calls.
The Flutesan 20 is a set of 20 wired on-ear headphones in black, and the number is the whole point. If you run a study room, a library listening station, a museum audio point, a hotel or a gym, you do not want to buy one headphone at a time and hope the models match. You want a box of identical pairs you can hand out, collect and replace without thinking about it.
Mechanically it is deliberately simple. The casing is ABS, which the spec sheet describes as stable, tough and lightweight, and the ear pads are foam. The headband bracket adjusts, so the same headphone is meant to fit boys, girls and adults. The drivers are dynamic, impedance is 32 ohm, and the frequency range runs 20 Hz to 20,000 Hz — the standard full-range figure, which tells you this is a general-purpose voice-and-music headphone rather than a specialist one. Connectivity is a plain 3.5mm jack, so it plugs into smartphones, tablets, computers, laptops and audiobook players without any pairing step. Volume control is listed on the headphone itself.
Who should buy it: anyone whose problem is quantity and durability of basics, not audio luxury. Teachers, librarians, activity coordinators, front-desk managers — people who need twenty working pairs today. The 3.5mm jack matters here too, because shared devices usually still have one.
Who should skip it: a single listener who wants one nice personal headphone, an inline mic for calls, or a hard volume cap for a young child. In my opinion the Flutesan 20 is a logistics product, and judged as one it makes sense; judged as a personal headphone it is plainly basic.
The LORELEI E7 is the opposite kind of purchase: one pair, designed around one small listener. The headline feature is the volume ceiling. It holds output to 85dB for everyday listening, and you can push it to 94dB when you are somewhere genuinely loud — a car, a plane, a busy terminal — so your child can still hear dialogue without you handing over unlimited volume. For a parent, that is the single most useful thing on the page.
The rest of the design supports the same idea. The ear cushions are ultra-soft and the headband is padded, with an adjustable slider, which is what you want for a long homework session or a long drive. The ear cups swivel 90° so the headphones lie flat against the neck when your child is doing something else, and the whole thing folds to roughly 6.85 × 6.06 × 2.17 — small enough to live in a backpack pocket. There is a built-in microphone and an inline control for play/pause and answering or ending calls, which is what makes it work for online classes and phone calls, not just music. The 40mm dynamic drivers, 32 ohm impedance and 20 Hz–20,000 Hz range cover the same full-range span as the Flutesan, with the sheet calling out rich bass and crisp mids. Noise control is passive, meaning the cushioning does the blocking rather than electronics. The blue-and-red colourway and spiral pattern are clearly aimed at children, and the brand notes adults can wear it too.
Who should buy it: a parent or guardian buying for a school-age child who uses an iPad, laptop or phone for lessons, music and calls, and who travels. Who should skip it: anyone buying for a group, or an adult who wants an unrestricted volume range and does not care about a limiter.
Side-by-Side: Which Should You Choose?
• Best for equipping a group → Flutesan 20. Twenty pairs, one order, one model number to reorder later.
• Best for child hearing safety → LORELEI E7. The 85dB/94dB limit is a real design feature, and the Flutesan sheet lists no such cap.
• Best for travel and storage → LORELEI E7. Foldable body, 90° swivel cups, and a folded size around 6.85 × 6.06 × 2.17.
• Best for shared or institutional listening → Flutesan 20. Libraries, museums, gyms and study rooms are exactly the settings named for it.
• Best for the widest fit range in one box → Flutesan 20. The adjustable bracket is described as friendly to adults, boys and girls, and one size is meant to suit most.
• Best for a single adult who just wants a cheap spare pair → Flutesan 20 is overkill as a pack of 20; LORELEI E7 fits better, since it is sold as one unit and adults can wear it.
• Best for long-session comfort → both are plausible, but LORELEI E7 is the one whose sheet explicitly calls out padded headband and fatigue-free wear.
Both use a 3.5mm wired jack, both are on-ear, both are 32 ohm, and both cover 20 Hz to 20,000 Hz. The decision is not about audio format — it is about how many pairs you need and who is wearing them.
If I were buying for my own child, I would pick the LORELEI E7. The volume ceiling, the microphone, the padded headband and the foldable body are four separate features that each solve a real problem for a kid using a tablet or a laptop, and no other option here addresses any of them. If I were outfitting a room rather than a person, I would buy the Flutesan 20 without hesitation, because twenty matching pairs with adjustable headbands and a 3.5mm plug is exactly what a shared listening space needs. Different jobs, different answers — and I would not swap them.
are on ear headphones good
They are good when you want something lighter and more compact than over-ear models and you do not need deep isolation. Both of these are on-ear designs with foam or soft cushions, and both cover the standard 20 Hz to 20,000 Hz range, so they are fine for speech, lessons and everyday music. The trade-off is that on-ear cushions press against the ear rather than around it, so blocking outside noise depends on fit rather than electronics — the LORELEI E7, for example, uses passive noise cancellation.
are open ear headphones good
That is a different category from either headphone here. Open-ear models sit outside the ear canal and let you hear your surroundings, which suits running and cycling. The Flutesan 20 and LORELEI E7 are both on-ear headphones that rest against the ear, so if your priority is hearing traffic while you move, neither is the open-ear style you are describing.
are on ear headphones comfortable
Comfort on on-ear headphones comes down to padding and fit adjustment, and both of these address it. The Flutesan 20 uses foam ear pads and an adjustable bracket sized to suit adults, boys and girls. The LORELEI E7 uses ultra-soft ear cushions, a padded headband and an adjustable slider, and is described as fatigue-free over long sessions. If you wear glasses or have a larger head, the adjustable slider on the LORELEI E7 is the more forgiving setup on paper.
what are the best open ear headphones
I would not call either of these open-ear, so I cannot answer that from these two data sheets — this page is about compact on-ear headphones. What I can say is that both picks here are wired 3.5mm on-ear models with 32 ohm impedance, and if you need a volume-limited pair for a child or a bulk set for a shared space, those are the strengths worth weighing. For current pricing on either, check the latest price on Amazon.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: headphones ear pads, RICHJOY Open Ear Headphones vs JKNKCO NE49, CCA CRA vs okcsc Classic On-Ear Headphones