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Updated: 2026-09-18 · 7 min read · Independent comparison
• Bulktech 5 — biggest strength: a five-pack of wired USB-C on-ear headphones with leather cushions, rotatable earcups, a built-in mic and a one-button remote, individually wrapped for handing out to a group.
• Bulktech 5 — biggest trade-off: the USB-C plug only fits USB-C devices, so anything with a round 3.5mm audio jack is out unless you supply a different connection entirely.
• ASKUBSKU School Earbuds — biggest strength: a compact 25° semi in-ear design with a 3.5mm plug, an in-line button remote and a high-sensitivity mic, so it slots into the older gear many classrooms and homes still run.
• ASKUBSKU School Earbuds — biggest trade-off: it is a single pair of in-ear buds, not a set, and the in-line volume control doesn't work on iOS devices.
• Who each pick is for: Bulktech 5 fits teachers, test coordinators and IT buyers equipping a room; ASKUBSKU fits one person plugging into a laptop, Kindle Fire, Switch or Android phone.
Bulktech 5 is built around one idea: getting audio into a lot of hands at once. The five-pack arrives individually wrapped, which matters more than it sounds. If you run a classroom, a test center or a computer lab, you can hand a sealed unit to a student, collect it, and move on. No shared-cushion hygiene problem, no untangling a communal bin of headphones.
The other half of the pitch is the connector. This is a USB-C headphone — no Bluetooth pairing, no dongles, no adapters. Plug it into a USB-C Chromebook, tablet, laptop or Android phone and digital audio starts immediately. If your school has refreshed its device fleet in the last few years, this is the plug you actually have. That alone removes a common classroom headache, because pairing thirty Bluetooth headsets at the start of a lesson is nobody's idea of a good time.
On the head, it's an on-ear design with padded leather cushions and rotatable earcups, plus an adjustable headband. The rotatable pads help it sit flat and fold into a bag or a storage crate. The build is plastic and lightweight, in a plain black finish that won't look out of place in an office or a library. The 32-ohm dynamic drivers cover a 20 Hz to 20,000 Hz range — a standard full-range spec that handles speech and music without drama. There's a built-in microphone with a one-button remote for calls, play/pause and voice assistant, and the on-ear seal gives you passive isolation. Note the wording: passive. There's no active noise cancellation here, just the physical seal of the cushion. That's fine for online classes and video calls; it won't erase a loud room.
Who should buy it: anyone buying headphones in numbers — teachers, IT admins, training managers, test coordinators — or a household that keeps losing single pairs and would rather have spares on the shelf. Who should skip it: if your laptop, phone or handheld has a round 3.5mm hole rather than USB-C, this is the wrong connector and you should look elsewhere.
ASKUBSKU School Earbuds go the opposite direction: one pair, tiny, and aimed at the jack that refuses to die. The 3.5mm plug is the connective tissue of older laptops, desktop PCs, Kindle Fire tablets, the Switch, MP3 players and plenty of Android handsets. If your device list on the product page reads like a museum of the last decade of phones, that's the point — this is a plug-in-and-go bud for gear that predates USB-C audio.
The design is a 25° semi in-ear bud, which is a shallower fit than a fully sealed in-ear monitor. ASKUBSKU frames that angle as ergonomic, and in practice a semi in-ear rests in the ear rather than burrowing into the canal, which some people find easier to wear for long stretches. The trade-off is real, though: a shallow fit isolates less than a deep-seated bud. ASKUBSKU lists "Sound Isolation" as the noise control, so expect it to take the edge off a room rather than silence it.
The control story is the practical selling point. There's an in-line button for pause/play, answering and hanging up calls, and waking the voice assistant — all without reaching for your phone. ASKUBSKU also calls out an upgraded high-sensitivity, multi-directional microphone with enhanced voice, which is the part that matters if you're on calls all day. One caveat straight from the maker: the in-line volume control does not work on iOS devices, so iPhone and iPad users should expect the buttons to be partial.
Who should buy it: a student or office worker with a 3.5mm laptop, PC, Kindle Fire, Switch or older Android phone, especially if you take a lot of calls. Who should skip it: anyone on a USB-C-only device, anyone who needs a set of several, and any iOS user who relies on in-line volume buttons.
Side-by-Side: Which Should You Choose?
• Best for buying in bulk → Bulktech 5. Five individually wrapped units versus one pair.
• Best for USB-C devices → Bulktech 5. Direct USB-C digital audio, no adapter or pairing.
• Best for older 3.5mm gear → ASKUBSKU. Laptops, PCs, Kindle Fire, Switch and legacy Android phones.
• Best for wearing for hours → ASKUBSKU. The 25° semi in-ear angle is a lighter, shallower fit than an on-ear cushion pressing on your ears.
• Best for a shared or classroom setting → Bulktech 5. Sealed packaging and an adjustable headband that fits kids and adults.
• Best for isolation → Bulktech 5. The on-ear cushion seal blocks more ambient sound than a semi in-ear bud.
• Best for portability → ASKUBSKU. Buds plus a protective case disappear into a pocket; Bulktech 5 is a headband you have to carry.
• Best for iPhone users → Bulktech 5. The USB-C connector sidesteps the iOS in-line volume limitation ASKUBSKU flags.
If I were buying for a group — a class, a lab, a training room — I'd take the Bulktech 5 every time. Five sealed USB-C units with mics, matched to the Chromebooks and tablets most schools actually run, is the cleaner decision, and I'd rather deploy USB-C now than fight 3.5mm adapters for another few years. If it's just me and one 3.5mm device, I'd take the ASKUBSKU School Earbuds: lighter on the ear, easier to carry, and it plugs into the older hardware that's still everywhere. Check the current price on Amazon before you commit, since a five-pack and a single pair are very different purchases.
It depends on your Chromebook's port. If it has USB-C, the Bulktech 5 plugs straight in with no adapter. If it has a 3.5mm jack, the ASKUBSKU buds are the simpler match. Check the port before you buy.
They'll play audio through the 3.5mm jack, but ASKUBSKU states the in-line volume control doesn't work on iOS. Calls and play/pause are the safer expectation than full button control.
Not as shipped. Bulktech 5 is a USB-C headphone, so a 3.5mm-only laptop or phone won't take it without a different connection. If that's your setup, the ASKUBSKU buds fit better.
The Bulktech 5, in my opinion. Its on-ear cushion creates a physical seal, while the ASKUBSKU buds use a shallow 25° semi in-ear fit that reduces noise but doesn't seal the canal.
Bulktech 5 is about quantity and USB-C convenience — five wrapped units for group use. ASKUBSKU is about one compact, pocketable pair that fits older 3.5mm hardware. Different jobs, not really competitors.
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