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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a single, durable pair of on-ear headphones with a folding frame and a proper over-ear cup for one kid, choose ELECDER i37; if you need to equip a whole classroom, a school set, or a large group of students at once, choose OSSZIT Kids Headphone Bulk. These two products solve completely different problems, and the right pick comes down to whether you're buying for one child or for twenty-four.
• ELECDER i37 — biggest strength: a foldable, adjustable on-ear design with 40 mm dynamic drivers, plush ear cushions and an L-shaped 3.5 mm plug that fits almost any device.
• ELECDER i37 — biggest trade-off: it's a single pair, so if you need to hand out headphones to a group, you'll be buying one at a time.
• OSSZIT Kids Headphone Bulk — biggest strength: it's a 24-pack, individually packaged in 12 colors, which makes it a one-shot solution for a classroom or a whole grade.
• OSSZIT Kids Headphone Bulk — biggest trade-off: no active noise control and no folding frame, so it's about mass supply and comfort rather than travel-friendly hardware.
• Who each pick is for: ELECDER i37 for a parent buying for one child who travels or moves between devices; OSSZIT Kids Headphone Bulk for a teacher, school, or program buying for a group.
The i37 is built around one idea: a kid's headphone that survives being carried around and plugged into whatever device is nearby. The 40 mm dynamic drivers cover a 20 Hz–20,000 Hz range at 32 ohm impedance, which is the kind of load almost any phone, tablet, Chromebook, PC, or Kindle headphone jack can drive without trouble. The L-shaped 3.5 mm plug matters more than it sounds — it sits flatter against the device, which reduces the leverage a child's hand or a backpack strap puts on the jack. That's a small design detail that tends to matter in real use.
The physical build is aimed squarely at small heads. It's an on-ear set with plush cushions and an over-ear earpiece shape, plus an adjustable headband, so it can be tuned to fit a younger child now and re-adjusted as they grow. The folding hinge is the standout feature for anyone who has ever tried to cram a rigid headphone into a school bag or a carry-on. At 5.6 ounces it's light enough that a child is unlikely to complain about wearing it for a homework session or a flight.
The i37 isn't the right pick for everyone. If you're outfitting a classroom, buying these one by one gets expensive and slow, and there's no volume-limiting feature listed here, so a parent who specifically wants a hard cap on loudness should look elsewhere. There's also no wireless mode — it's a wired-only, 3.5 mm design, which is a plus for durability but a downside for anyone who has already moved to a phone without a headphone jack. Controls are media/touch-based on the cable, and noise control is listed as sound isolation rather than active cancellation, so it reduces outside noise by sealing over the ear, not by electronics. In my opinion, this is the pair I'd hand a single child who needs something that packs down and plugs into school hardware.
This is a supply product, and it's honest about that. The OSSZIT set arrives as 24 pairs, individually packaged or boxed as a set, in a spread of 12 colors. For a teacher setting up a listening station, a school that needs a class set, or a program that distributes headphones to students, that packaging structure is the entire point — you get the whole group covered in one purchase instead of chasing individual units. OSSZIT describes itself as an earbuds factory that supplies earphones to students, conference rooms, libraries, and hospitals, and the bulk format fits that institutional framing.
The audio specs are conventional and safe: 32 ohm impedance and a 20 Hz–20,000 Hz frequency range, matched to any device with a standard 3.5 mm jack — desktops, laptops, tablets, phones. The brand emphasizes a smaller fit for kids' ears and a snug, comfortable seal, which is the right priority when the same pair might end up on a seven-year-old and a teenager in the same room. It's a wired, over-ear design with a media control on the remote, and the cabling is the built-in media.
The trade-offs are real. There's no noise control at all on this model, so anyone expecting isolation or cancellation won't get it. There's no folding mechanism described, which makes sense for a product meant to live in a classroom drawer rather than a backpack. And the 24-pack format is a liability for a single-family buyer — you'd be paying for two dozen pairs when you need one. Warranty is listed as one year. My take: this is the sensible choice for a teacher or administrator, and the wrong choice for a parent shopping for one child.
• Best for one child → ELECDER i37. A single, adjustable, foldable pair fits a family purchase.
• Best for a classroom or school set → OSSZIT Kids Headphone Bulk. 24 pairs in 12 colors covers a group in one shot.
• Best for travel and storage → ELECDER i37. The folding hinge and 5.6 oz weight are built for bags and carry-ons.
• Best for fitting a range of head sizes across many students → OSSZIT Kids Headphone Bulk. The brand's focus on a smaller, snug kid-friendly fit suits mixed-age groups.
• Best for driver size and audio hardware → ELECDER i37. 40 mm dynamic drivers are specified here; the OSSZIT sheet doesn't list a driver size.
• Best for noise reduction → ELECDER i37, but only through sound isolation. If you want actual noise cancelling, neither of these is the answer.
• Best for device compatibility → a tie. Both use a standard 3.5 mm wired jack and work with phones, laptops, tablets and desktops.
• Best for a school that also wants to resupply mid-year → OSSZIT Kids Headphone Bulk. Individually packaged units are easy to hand out as spares.
If I were buying for my own kid, I'd take the ELECDER i37. The folding frame, adjustable headband, plush on-ear cushions and the L-shaped plug add up to a headphone designed to survive a school bag and a car trip, and 40 mm drivers with a 20 Hz–20,000 Hz range are more than enough for schoolwork and entertainment. I'd only switch to the OSSZIT bulk set if my actual job were equipping a room full of students — in which case the 24-pack, the 12-color spread and the individual packaging make it the obvious call. Buy the i37 for a child; buy the OSSZIT set for a class.
how to headphones work
A wired headphone like both of these takes the analog audio signal from your device through the 3.5 mm jack and drives the internal speakers — here, dynamic drivers — to produce sound. The 32 ohm impedance on both models is a common, easy-to-drive load, so phones, laptops and tablets can power them directly.
how to headphones on iphone
Both the ELECDER i37 and the OSSZIT set use a standard 3.5 mm wired jack, so they plug into any iPhone that still has a headphone port. On newer iPhones without one, you'd need a 3.5 mm adapter, which isn't included in either listing.
how to headphones noise cancelling
Neither product offers active noise cancelling. The ELECDER i37 lists sound isolation, which means the plush on-ear cushions physically block some outside noise, while the OSSZIT set lists no noise control at all.
how to headphones
Start by checking your device has a 3.5 mm jack, then plug the L-shaped or straight connector in firmly, adjust the headband for a snug fit, and use the inline media control to play, pause and skip. For the ELECDER i37, fold the earcups in when you're done for easier storage.
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