How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-08 · 6 min read · Independent comparison
• Konohan 30's biggest strength: a 30-pack of wired on-ear headphones with a 3.5mm jack, an adjustable slim headband and soft foam ear cushions — built for bulk classroom and testing use.
• Konohan 30's biggest trade-off: it uses the older 3.5mm plug, so USB-C-only devices will need an adapter, and it ships as a 30-count box rather than individually convenient singles.
• ZXQZYM 20's biggest strength: USB-C connectivity straight out of the box, with individual packaging that makes hand-out and collection easy for teachers.
• ZXQZYM 20's biggest trade-off: it's a 20-pack with no 3.5mm option, so any device lacking USB-C is off the table without a dongle.
• Pick Konohan 30 if your classroom devices still use 3.5mm jacks and you want the larger count.
• Pick ZXQZYM 20 if your school runs on Chromebooks, tablets and USB-C laptops.
Konohan 30 is a bulk set of 30 on-ear headphones in black, each with a 3.5mm headphone jack. The design story here is straightforward: a slim, adjustable headband and soft foam ear cushions, with an on-ear fit that the spec sheet says is meant to reduce ear pressure during longer sessions. The cable runs about 4.92 feet, which gives a student enough slack to shift around at a desk without yanking the plug out. Each unit is individually wrapped, and the whole box weighs roughly 4.1 pounds.
Who should buy it: teachers, lab managers, librarians and testing coordinators who need a large, uniform batch of wired headphones for 3.5mm devices, plus anyone buying party favors, travel supplies or back-to-school items in volume. Who should skip it: anyone whose devices are USB-C-only, and anyone who needs just one or two pairs — a 30-pack is overkill for personal use. Also worth noting from the sheet: the manufacturer advises confirming jack size before ordering and warns that cable winding risk means these should be kept away from young children unsupervised.
ZXQZYM 20: Who It's For
ZXQZYM 20 is a 20-pack of USB-C wired on-ear headphones in black, built around a standard USB-C connector. The pitch is modern-device compatibility: Chromebooks, laptops, tablets and anything else with a USB-C port. For schools that standardized on Chromebooks, that's the whole ballgame — no adapters floating around a classroom, no dongles going missing between periods.
Comfort is handled with a lightweight on-ear structure, soft ear cushions and an adjustable headband, and the sheet explicitly lists the fit as suitable for kids, teens and adults for prolonged wear. Audio-wise, the claim is crisp, clear sound aimed at lectures, language-learning resources and exam audio prompts — not music-first tuning. The build is described as sturdy with reinforced cables, which is the right priority when headphones get passed between dozens of students, and there's a one-year warranty listed. Impedance is 32 ohm, a common, easy-to-drive figure that works fine from laptop and tablet headphone outputs. Note that noise control is listed as none — these are plain passive headphones, not noise-cancelling.
The individual packaging is the quiet win here. Teachers can distribute and collect by the unit, keep sets organized by student or station, and replace a single failed pair without cracking open a whole carton. Who should buy it: schools and labs running USB-C devices, testing centers needing standardized audio gear, and administrators who want a defined count with a warranty behind it. Who should skip it: anyone with 3.5mm-only hardware, and anyone who needs a larger quantity than 20.
• Best for 3.5mm devices → Konohan 30. Laptops, desktops, MP3 players, listening consoles and older classroom audio systems all connect directly.
• Best for USB-C devices → ZXQZYM 20. Chromebooks, USB-C laptops and tablets plug in without an adapter.
• Best for larger classroom counts → Konohan 30. 30 individually wrapped pairs versus 20.
• Best for easy distribution and organization → ZXQZYM 20. Individual packaging plus a stated one-year warranty makes single-unit replacement simple.
• Best for long-session comfort → a close call. Both use adjustable headbands and soft on-ear cushions; Konohan's sheet emphasizes reduced ear pressure, while ZXQZYM's emphasizes a lightweight build for kids, teens and adults.
• Best for exam and language-lab audio → either, matched to your port. Both are positioned around clear speech for lectures and test prompts.
• Best for cable durability on paper → ZXQZYM 20. Reinforced cables are called out specifically; Konohan's sheet instead warns about winding risk with children.
• Best if you're shopping for one student → neither. These are bulk sets; a single pair makes far more sense for personal use.
If I were outfitting a classroom today and had to pick one, I'd buy ZXQZYM 20 — in my opinion, USB-C is where school hardware has gone, and the individual packaging plus reinforced cables and one-year warranty fit the messy reality of shared student gear better. I'd choose Konohan 30 only if my devices are still 3.5mm-based or I specifically need 30 pairs rather than 20. And to repeat the caveat from the top: neither one is a swimming headphone, so for pool use, keep looking. Check the current price on Amazon before you commit, since bulk pricing is where these two will actually separate for your budget.
FAQ
ZXQZYM 20. It uses a standard USB-C connector, which is what Chromebooks and most current school laptops and tablets accept directly. Konohan 30's 3.5mm plug would need an adapter on those devices.
No. ZXQZYM 20 lists noise control as none, and Konohan 30 describes only passive on-ear foam cushions. Both reduce some outside sound through the on-ear seal, but neither is an active noise-cancelling headphone.
Konohan 30 includes 30 headphones, individually wrapped. ZXQZYM 20 includes 20, also in individual packaging for easy hand-out.
No. Both are wired on-ear headphones with open acoustic designs and fabric-and-foam construction that isn't meant for water. For swimming, you want a sealed, waterproof set instead — that's a different product category entirely.
• our IHAO 5.3 vs YGVCDRY B36 pick
• Turtle Beach Recon 70 vs Orzly VR Headset Designed
• VibeTune Kids vs Ordtop Earbuds
• HIFIXAUDIO SIMGOT EW300 vs LC-dolida Open-Ear
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.