How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-04 · 7 min read · Independent comparison
• Flutesan 20 — biggest strength: You get 20 wired on-ear headphones with 3.5 mm plugs and adjustable brackets, so a whole room can be set up at once with nothing to charge.
• Flutesan 20 — biggest trade-off: It's a bulk listening tool, not an audiophile set. ABS housing, foam pads, and a cable mean it's built for shared, supervised use rather than travel protection.
• FBLFOBELI Headphone Cases EVA — biggest strength: A hard, shockproof, waterproof EVA shell with double zippers and a mesh pocket, sized for compact on-ear wireless headphones.
• FBLFOBELI Headphone Cases EVA — biggest trade-off: It's an empty case. No headphones inside, and compatibility leans toward specific JBL on-ear models.
• Pick Flutesan 20 if you're equipping classrooms, libraries, gyms, or a family with several listeners and want plug-and-play simplicity.
• Pick FBLFOBELI Headphone Cases EVA if you already own a compact on-ear wireless headphone and want to stop it getting crushed in a bag.
Flutesan 20 is a 20-pack of wired on-ear headphones in black. That number is the whole story. This isn't a product you buy for one person — it's a product you buy when you need a drawer, a shelf, or a classroom bin full of identical headphones that all work the same way. Each one is on-ear by design, with ABS plastic housing that the spec sheet describes as stable, tough and lightweight, plus foam ear pads for comfort over longer stretches.
The practical specs matter here. A 3.5 mm jack means no pairing, no charging, no dead batteries mid-lesson. Plug into a smartphone, tablet, laptop, computer, or audiobook player and it works. The 32 ohm impedance and dynamic driver with a 20 Hz to 20,000 Hz frequency range put it in normal, everyday-listening territory — clear sound for speech, music and video, not studio monitoring. The adjustable bracket is the feature I'd highlight most, because it's what lets the same headphone sit reasonably on an adult, a teenager and a younger kid.
Who should skip it? If you want one excellent pair of headphones for yourself, buying 20 is the wrong shape of purchase — you're paying for quantity, not refinement. And if you need wireless freedom, this is wired only. There's no Bluetooth here. If you need a protective case for a wireless headphone you already own, look at the other product on this page instead.
FBLFOBELI Headphone Cases EVA: Who It's For
FBLFOBELI Headphone Cases EVA is the opposite kind of purchase: one item, one job. It's a hard EVA storage case for compact on-ear wireless headphones, built primarily around the JBL Tune 500BT family and related JBL on-ear models like the Tune 510BT, T450BT, 710BT and Live 650 BT NC. The listing names those models specifically, so if you own one of them, you're in the intended lane.
The materials do the heavy lifting. EVA is a foamed plastic that holds its shape, and this case leans into that — it's described as durable, sturdy, shockproof and waterproof, with a hard shell type and a waterproof water-resistance level. In plain terms: it resists the crush of a packed backpack, shrugs off a splash, and keeps scratches and scuffs away from the headband and earcups. The compatible device size maxes out at 7.8 inches, which is exactly the compact on-ear footprint — this is not a case for large over-ear cans.
Two design details are worth calling out. First, double zippers, which are genuinely more convenient than a single zip when you're opening it one-handed on a train or plane. Second, a built-in mesh pocket for accessories — a charging cable, a short audio cable, maybe an adapter. Keeping the cable with the headphone is the difference between a case you use and a case you forget at home. It's lightweight at 0.19 kg and shaped as a compact bag rather than a rigid box, so it slides into luggage easily.
Who should buy it? Anyone who owns a compact on-ear wireless headphone and moves it around — commuters, students, frequent flyers, people who toss headphones into a work bag. The description frames it around home storage and travel protection, and that's the honest use case. If you want to protect the headphones you already like, this is the buy.
Who should skip it? Anyone expecting headphones in the box. The listing is explicit: there is no device in this storage case. It's also a poor fit if your headphones aren't compact on-ear, or aren't one of the named JBL models — the sizing is tuned to that shape. And if your headphones live permanently on a desk, a case adds little.
• Best for equipping a group → Flutesan 20. Twenty units, one purchase, no charging logistics.
• Best for protecting one headphone you own → FBLFOBELI Headphone Cases EVA. Storage and protection is the entire function.
• Best for zero-setup listening → Flutesan 20. Wired 3.5 mm means no pairing and no battery anxiety.
• Best for travel and commuting → FBLFOBELI Headphone Cases EVA. Hard shell, waterproof, lightweight, zip closure.
• Best for fitting different head sizes → Flutesan 20. The adjustable bracket is designed to suit adults, boys and girls.
• Best for accessory organization → FBLFOBELI Headphone Cases EVA. The internal mesh pocket holds cables and small extras.
• Best for shared or supervised environments → Flutesan 20. Study rooms, libraries, gyms and classrooms are its stated territory.
• Best for wireless headphone owners → FBLFOBELI Headphone Cases EVA. It's shaped for compact on-ear Bluetooth models.
• Worst mismatch for each: buying Flutesan 20 if you want one premium pair; buying FBLFOBELI if you don't own compatible headphones.
In my opinion, these two products aren't really competitors — they solve different problems, and the right answer depends on what's missing in your life. If you're setting up a shared listening space or buying for a household with several people, I'd buy the Flutesan 20. Twenty wired on-ear headphones with adjustable brackets and universal 3.5 mm plugs is a genuinely practical package, and the ABS-and-foam build is honest about what it is.
If instead you already own a compact on-ear wireless headphone and it keeps getting knocked around, I'd buy the FBLFOBELI Headphone Cases EVA without hesitation. A hard, waterproof EVA shell with double zips and a mesh pocket is exactly the kind of boring, useful purchase that saves you from replacing headphones later. For most readers who own a JBL Tune 500BT or similar, that's the pick.
are on ear headphones good
On-ear headphones rest against the ear rather than around it, which keeps them compact and light — useful for travel and long listening sessions. The Flutesan 20 uses foam ear pads and a lightweight ABS build for comfort, while the FBLFOBELI case is sized for compact on-ear models up to 7.8 inches. Whether they're good for you comes down to fit and whether you prefer wired or wireless.
are on ear headphones comfortable
Comfort depends on the pads, the clamping force and the fit. Flutesan 20 uses foam ear pads and an adjustable bracket designed to suit adults, boys and girls, which helps it sit properly on different head sizes. The FBLFOBELI case, by contrast, is about protecting a headphone you already find comfortable — it adds no padding of its own.
are open ear headphones good
Open-ear and on-ear are different categories, so it's worth separating them. Flutesan 20 is an on-ear wired headphone with a 32 ohm impedance, dynamic driver and a 20 Hz to 20,000 Hz range — a standard closed on-ear design, not an open-ear one. Neither product on this page is an open-ear model, so if that's what you want, look elsewhere.
what are the best open ear headphones
I can't answer that from the data here, because neither product is open-ear. Flutesan 20 is on-ear and wired with a 3.5 mm jack. FBLFOBELI Headphone Cases EVA is a storage case for compact on-ear wireless headphones. For open-ear models you'd need a different comparison entirely.
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: DARK WOLF 2Packs vs ANGSLEEP Headphones, Dell Alienware Pro vs Shokz OpenRun Pro 2, Nightwooolf TV Headset vs ADOOPE Over-Ear Headphones, SGNICS Earbuds vs Deersights Motorcycle Helmet