We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-29 · 6 min read · Independent comparison
If you want the more affordable per-student way to equip a class with simple, no-fuss wired headphones, choose ZXQZYM Bulk Headphones 20; if you need more units, an adjustable headband and a wider color mix, choose Konohan 32.
• ZXQZYM Bulk Headphones 20 — biggest strength: a 20-pack of on-ear wired kids' headphones with a 4-foot cable, 3.5 mm jack and a stated 1-year warranty — a tidy, straightforward class-set option.
• ZXQZYM Bulk Headphones 20 — biggest trade-off: no adjustable headband is listed, so fit is fixed rather than tunable, and there's no noise control at all.
• Konohan 32 — biggest strength: 32 units in 15 different colors, with an adjustable headband that the brand says fits adults as well as kids.
• Konohan 32 — biggest trade-off: the listing's own wording around "noise cancelling" and "in-ear" is loose — the spec sheet says on-ear with sound isolation, so treat the noise blocking as passive, not active.
• Pick ZXQZYM Bulk Headphones 20 if you want a smaller, simpler set and you're outfitting one classroom or a handful of kids.
• Pick Konohan 32 if you need to stretch across multiple rooms, share between grade levels, or you specifically want the adjustable fit.
The ZXQZYM set is built around one idea: get a lot of kids listening at once without anything complicated. You get 20 on-ear headphones, each sealed in its own bag inside a carton box, in a multi-color assortment. The ear cushions are soft fabric-and-silicone, the cups are rounded, and the cable runs 4 feet to a 3.5 mm jack. That jack covers the usual suspects — tablets, Chromebooks, laptops, desktops, PCs and fitness equipment. Impedance is 32 ohm with a 20 Hz–20,000 Hz range, which is the standard, unremarkable range you'd expect at this tier, and honestly that's fine for speech, lessons and test audio.
Who should buy it? In my opinion, this is the pick for a single classroom, a tutoring setup, a testing room, or a parent buying for a few kids at once. The per-unit packaging matters more than people think: sealed individual bags mean you can hand them out, store the spares, and replace one without untangling a pile. The stated 1-year warranty is a reasonable cushion for something kids will yank off a desk by the cord.
Who should skip it? Anyone who needs the headband to actually adjust. ZXQZYM doesn't list an adjustable headband, so if you've got a mix of small children and teenagers in the same room, fit will be hit-or-miss. There's also no noise control listed at all — for a quiet testing environment, that's a real limitation. And if 20 units won't cover your building, you'll be buying twice.
Konohan's set leans harder into logistics. Thirty-two headphones, spread across 15 colors: four in black and two in each of the remaining fourteen (turquoise, blue, red, white, orange, purple, green, pink, rose red, mint green, light green, light blue, yellow, gray). If you've ever tried to keep track of whose headphone is whose in a room of thirty kids, you already understand why the color split is the real feature here. Color-coding by table, by group, or by cart slot solves a genuinely annoying classroom problem.
The headline spec, though, is the adjustable headband. Konohan states it fits adults as well as kids, which makes it far more flexible across grade levels — and more forgiving when a headphone gets handed to a substitute teacher or a visiting parent helper. The frame is ABS plastic, which keeps them light, and the soft rubber ear pads are described as sturdy and not prone to slipping. Cable length is 4 ft / 120 cm, the jack is 3.5 mm, and compatibility covers phones, laptops, library reading devices and similar gear. Audio is a dynamic driver running 20 Hz–20,000 Hz.
One honest note on the noise claim: the listing uses "noise cancelling," but the product information lists the noise control as sound isolation, and the ear placement as on-ear. Those are not the same thing. Passive isolation from soft ear pads is real and useful — it takes the edge off a noisy room — but nobody should expect active cancellation. Buy it for the adjustable fit and the color organization, not for silence.
Side-by-Side: Which Should You Choose?
• Best for adjustable fit → Konohan 32. Its adjustable headband is the single clearest functional difference between these two, and it's the reason to pay attention to this comparison at all.
• Best for smaller classrooms or home use → ZXQZYM Bulk Headphones 20. Twenty units is plenty for one room; thirty-two usually isn't.
• Best for keeping track of whose is whose → Konohan 32. Fifteen colors versus a general multi-color assortment.
• Best for a stated warranty → ZXQZYM Bulk Headphones 20. It lists a 1-year warranty description; Konohan's sheet doesn't mention one.
• Best for a mixed-age group → Konohan 32. Adjustable headband plus adult sizing means it works from young students up.
• Best for quiet-ish testing environments → Konohan 32. Sound isolation from the ear pads is listed; ZXQZYM lists no noise control.
• Best for straightforward single-room buying → ZXQZYM Bulk Headphones 20. Carton box, individually bagged, one clean order.
• Best for scaling across a building → Konohan 32. More units, more colors, more forgiving fit.
Both use the same 3.5 mm wired connection, the same 4-foot cable, and the same 20 Hz–20,000 Hz frequency range, so on pure audio specs they're close. The decision really comes down to quantity, fit and color organization.
My Verdict
how to adjust headphones
It depends on the design. The Konohan 32 has an adjustable headband you slide to match head size, and Konohan says it fits adults and kids. The ZXQZYM Bulk Headphones 20 doesn't list an adjustable headband, so there's nothing to resize — fit is fixed.
how to adjust headphones on iphone
Neither of these has its own volume dial — both list the control method as remote, meaning controls live on the connected device. With a 3.5 mm jack, you'd use Apple's adapter for newer iPhones and then adjust volume and playback through the phone itself.
how to adjust headphones volume
Use the source device, not the headphone. Both sets are wired with a 3.5 mm jack and list remote control, so volume is handled by the tablet, laptop, Chromebook or phone they're plugged into.
how to adjust headphones sound
Start with your device's audio settings and any equalizer it offers. On the hardware side, both are 32 ohm-ish wired on-ear designs running 20 Hz–20,000 Hz, and the Konohan's soft ear pads give some passive sound isolation that can make audio easier to hear in a noisy room.
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