How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a full classroom set in one box with a 3.5 mm plug that works with almost anything in the building, choose Yunsailing 18; if you need USB-C headphones for newer Chromebooks, tablets and phones, choose OYSLKJ 5.
• Yunsailing 18 biggest strength: 18 individually wrapped headphones in one pack, each with a 3.5 mm plug, folding hinges and an adjustable over-ear fit — a ready-made class set.
• Yunsailing 18 biggest trade-off: its connector is the older 3.5 mm style, so it's the wrong pick for devices that only have USB-C.
• OYSLKJ 5 biggest strength: a direct USB-C plug that matches modern Chromebooks, tablets and phones, plus five distinct colors so students can claim and spot their own pair.
• OYSLKJ 5 biggest trade-off: only five pairs per pack and no microphone, so it's a small-group or family set rather than a whole-class order.
• Pick Yunsailing 18 if you're equipping a classroom, testing center or event and want one bulk box of wired 3.5 mm headphones.
• Pick OYSLKJ 5 if your students' devices are USB-C and you want a small, colorful, no-mic set for focused listening.
The Yunsailing 18 is built around one idea: getting a lot of usable headphones into a lot of hands at once. The pack contains 18 pairs, each sealed in its own bag, so you can hand them out, store them and replace a single unit without opening the whole box. That individually wrapped format is the detail that matters most for schools — it keeps sets hygienic-ish and organized between classes.
The spec sheet describes an over-ear design with PU leather ear pads and an adjustable headband, plus a 90-degree rotating, folding hinge for storage. In practice that means a pair can be folded flat into a bin or a drawer, which is what you want when 18 of them have to live somewhere tidy. The cable is PVC and about 1.2 m / 3.94 ft long — long enough to reach a laptop on a desk without tangling into a knot, short enough not to drag across the floor. The stated output is 95–101 dB at maximum, and the shell is ABS, so the whole thing is pitched as reusable rather than disposable.
OYSLKJ 5: Who It's For
The OYSLKJ 5 goes the other direction: fewer pairs, newer connection, more personality. You get five headphones in black, dark blue, pink, purple and teal. That color spread sounds like a gimmick until you've watched a group of kids argue over whose pair is whose — a distinct color per student ends that argument instantly and makes it obvious if one goes missing.
The headline feature is the USB Type C jack. Plenty of current school devices have dropped the headphone socket entirely, and these plug straight in with no dongle. If your students are on USB-C Chromebooks, tablets, phones or laptops, that's a clean, cable-only solution with nothing extra to lose.
The trade-off is deliberate: there's no microphone. For online lessons where a student only needs to listen — recorded classes, audiobooks, reading apps, educational videos — a missing mic is a feature, not a flaw. It keeps the pair simple and keeps the student on task. But if a class requires speaking during a live session, these won't do the job. The fit is on-ear rather than over-ear, with an adjustable headband and soft cushions, and the impedance is listed at 32 ohm, which is an easy load for phones and laptops to drive. Kids, teens and adults are all in the stated age range, and there's a one-year warranty listed. Five pairs is the real limit here: this is a small-group, family or rotation set, not a whole-class order.
Side-by-Side: Which Should You Choose?
• Best for a full classroom set → Yunsailing 18. 18 pairs in one pack versus 5.
• Best for 3.5 mm hardware → Yunsailing 18. Desktops, older laptops, fitness equipment and testing stations still use that socket.
• Best for telling pairs apart → OYSLKJ 5. Five different colors beat 18 identical pink ones.
• Best for a no-mic, listen-only setup → OYSLKJ 5. No microphone keeps students on the audio, not on chatting.
• Best for storage and packing away → Yunsailing 18. The 90-degree rotating, folding hinge is made for bins and drawers.
• Best for events, rewards or party favors → Yunsailing 18. The bulk count and wrapped packaging suit giveaways and large groups.
• Best for on-ear comfort spec and warranty → OYSLKJ 5. On-ear fit, 32 ohm impedance and a listed one-year warranty.
In my opinion, most people searching this comparison are outfitting a room, not a backpack — and for that job the Yunsailing 18 wins on sheer practicality. Eighteen wrapped pairs, a 3.5 mm plug that fits the widest range of school hardware, and folding hinges for storage is exactly what a class set needs to be. I'd only switch to the OYSLKJ 5 if the devices in front of me are USB-C and the group is small. If that's your situation, its direct USB-C connection and color-coded pairs are the smarter pick. Either way, check the current price on Amazon before you commit to a bulk order, since the per-headphone math is what actually decides most classroom budgets.
For a full class, the Yunsailing 18 — it gives you 18 pairs in one pack with a 3.5 mm plug. The OYSLKJ 5 is better for a small group of five on USB-C devices.
Yes, if the Chromebook has a USB-C port. They plug directly into compatible USB-C Chromebooks, tablets, phones and laptops. If your device only has a 3.5 mm jack, choose the Yunsailing 18 instead.
The data sheet doesn't list one, so treat them as listen-only. The OYSLKJ 5 also has no microphone by design — that's intentional for focused listening.
I don't quote prices here, since they change often. Check the current price on Amazon using the button on this page and compare the cost per pair before ordering.
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: MiFE Fresh Music Sports bone conduction vs Xmenha Open Ear Earbuds, Yealink BH70 vs COMEXION Headset V5.3: Business Bluetooth, SGNICS Earbuds vs zakotu Earbuds, Nacon RIG R5 vs Razer Kraken V4: Gaming Headphones