How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a compact adapter that turns a USB-C port into a standard 3.5mm analog audio jack for headphones, speakers or an aux cable, choose biaze USB C Female; if you need a complete pair of wired kids' headphones with an in-line mic, volume-limit modes and a foldable over-ear frame, choose Zollexa Kids.
• biaze USB C Female — biggest strength: A tiny, lightweight male-to-female analog audio adapter (3.5mm male plug to USB-C female socket) that lets you plug wired headphones, earbuds, speakers or an aux cord into a USB-C device. Plug and play, no drivers.
• biaze USB C Female — biggest trade-off: It's a passive analog cable, not headphones. It adds no mic, no volume limiter, no controls, and it depends entirely on the audio device you already own.
• Zollexa Kids — biggest strength: A finished listening product: foldable over-ear headphones with 85/94dB volume-limit modes, a built-in in-line mic with one-button control, and a 3.5mm plug plus attached USB-C adapter for school and travel.
• Zollexa Kids — biggest trade-off: No noise cancellation, and it's built for school-age kids — the frame and fit aren't aimed at toddlers.
• Who each pick is for: biaze USB C Female is for adults who already own wired audio gear and just need the right connection. Zollexa Kids is for parents buying headphones for a school-age child who needs to join lessons and take calls.
The biaze USB C Female (model HW-Y138) is one of those small parts that solves one specific, annoying problem. It's a short analog audio cable with a 3.5mm male plug on one end and a USB-C female socket on the other. In plain terms: if your headphones, earbuds, portable speaker or aux cable ends in a 3.5mm plug, this adapter lets you connect that plug to a device that only has USB-C. It weighs 1.28 ounces, uses a metal housing with a flexible cable, and it's the kind of thing that lives in a bag pocket until you need it.
Skip biaze USB C Female if you're shopping for a kid, or if you want anything with a microphone, volume limiting or a headband. It has none of that. It's also not a fix for a device whose USB-C port doesn't carry analog audio. It's a connector, and it only does connector jobs.
Zollexa Kids: Who It's For
Zollexa Kids (model MA589) is the opposite kind of purchase: a complete listening setup designed for a child. These are wired over-ear headphones in a gradient sky blue and teal finish, with soft over-ear cushions, a lightweight adjustable headband and a foldable frame that packs down for a backpack. The cable is described as tangle-resistant, and the rounded frame is aimed at school, home, airplane and road-trip duty.
The features that matter most to parents are the 85/94dB volume-limit modes and the in-line microphone. The two modes give you a quieter setting for daily learning and a louder one for noisy travel environments. The built-in mic with one-button control means a kid can join online lessons, calls or voice practice without pairing or charging anything — because there's nothing to charge. It's wired, end to end.
The 2-in-1 compatibility is the practical hook: a standard 3.5mm plug plus an attached USB-C adapter, which covers Chromebooks, iPads, tablets, laptops and phones. If your child uses a school Chromebook one day and a tablet the next, that's one less thing to remember in the morning.
Where I'd steer you elsewhere: this is positioned for school-age kids, and the fit is built around that. If you're shopping for a toddler, the sizing and frame aren't designed for that stage. There's also no active noise cancellation — the volume limiting and closed over-ear cushions are the only isolation you get. If your kid needs serious quiet on a plane, that's a real limitation, not a marketing footnote.
• Best for connecting existing wired headphones to a USB-C device → biaze USB C Female. That's its entire job, and it does it without software.
• Best for a child who needs headphones for school and calls → Zollexa Kids. Plug, mic, volume limits and a foldable frame in one purchase.
• Best for hearing protection as a priority → Zollexa Kids. The 85/94dB modes are a design feature biaze simply doesn't have.
• Best for travel and stowing in a bag → biaze USB C Female. At 1.28 ounces with a compact cable, it disappears into a pocket; the Zollexa folds but is still a full pair of over-ear headphones.
• Best for microphone and hands-free use → Zollexa Kids. The in-line mic and one-button control are built in; biaze has no mic at all.
• Best for adults with an existing audio setup → biaze USB C Female. If you already love your wired headphones, this is the cheaper way to keep using them.
• Best for a single, self-contained gift → Zollexa Kids. Nothing else to buy, nothing to charge.
• Best for a toddler → neither, honestly. biaze isn't headphones, and Zollexa is sized and positioned for school-age kids.
In my opinion, these two aren't really competitors — they're answers to different questions. If someone in your house already owns wired headphones and just needs to plug them into a USB-C port, I'd buy the biaze USB C Female, because it's a small, durable, no-fuss adapter that does exactly one thing well. But if you're buying for a child who needs to hear lessons, join calls and stay at a safe volume, I'd buy the Zollexa Kids instead. It's the product that actually replaces the thing you're shopping for, rather than an accessory for something you already have.
No. It's an adapter cable — a 3.5mm male plug on one end and a USB-C female socket on the other. It connects wired audio gear to a USB-C device; it doesn't produce sound on its own.
The USB-C adapter is attached as part of the design, alongside the standard 3.5mm plug. You shouldn't need to buy a separate adapter for the devices it lists, which is the point of the 2-in-1 setup.
No. It carries analog audio only and has no microphone, controls or volume limiting. For mic and call features, you want something like the Zollexa Kids, which has a built-in in-line mic.
The biaze is a metal-housed adapter with a flexible cable, built for occasional plug-in use. The Zollexa is a full headphone with a foldable frame, adjustable headband and tangle-resistant cable, built for daily handling by a kid. Different jobs, different wear patterns. If price matters to you, check the current price on Amazon using the button on this page rather than guessing.
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.