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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 wired, kid-focused headphone built for school and tablet use, choose EarFun K3; if you need a wireless, noise-cancelling headphone with long battery life and a boom mic for calls and gaming, choose FJHBL Headphones.
These two look like they belong in the same shopping cart, but they solve completely different problems. The EarFun K3 is a wired USB-C kids headphone with a volume cap and a foldable over-ear build. The FJHBL M12 is a wireless Bluetooth headphone with active noise cancellation, a 60-hour battery claim, and a detachable boom mic. One is a school bag staple. The other is a do-everything commuter and gaming headset. Here's how I'd decide between them.
• EarFun K3 — biggest strength: Purpose-built for kids, with a wired USB-C connection that never needs charging, a volume limit, and a foldable over-ear design made from recycled materials.
• EarFun K3 — biggest trade-off: No wireless mode, no active noise cancellation, and no built-in microphone or boom mic — it's a listening-first headphone for USB-C devices only.
• FJHBL Headphones — biggest strength: Active Noise Cancellation rated up to 48dB, up to 60 hours of playtime with ANC off, Hi-Res Audio, spatial sound, and a detachable boom mic for calls and gaming.
• FJHBL Headphones — biggest trade-off: It's a wireless headphone aimed at general users, not a kids' product — no volume limit, no recycled-material story, and it depends on battery charge for its main mode.
• Pick EarFun K3 if you're buying for a child or teen who needs a durable, charge-free headphone for a tablet, Chromebook, or PC.
• Pick FJHBL Headphones if you're buying for yourself or an older user who wants noise cancelling, wireless freedom, and a mic for meetings or games.
The EarFun K3 is a kids' headphone first and an audio product second, and that ordering shows in every design choice. It's a wired, over-ear model with an upgraded USB-C connector, so it plugs straight into Type-C tablets, Chromebooks, and PCs. No pairing, no charging, no "the battery died in the middle of class" problem. For a parent, that reliability is the whole point. The 40mm dynamic driver covers a 20Hz–20,000Hz frequency range with 32 ohm impedance and 100dB sensitivity, which is a sensible, easy-to-drive spec for spoken-word lessons, videos, and music.
Who should buy it: parents of kids and teens who need one dependable wired headphone for school, travel, and tablet time. Who should skip it: anyone who wants Bluetooth, noise cancellation, or a microphone for calls. There's no noise control listed and no wireless mode, so it's the wrong tool for a commuting adult or a work-from-home caller. If you're weighing it against a wireless set, check the current price on Amazon before deciding — the wired simplicity is the value here, not the feature list.
FJHBL Headphones: Who It's For
The FJHBL M12 (model HBL-0051) is the opposite philosophy: pack in as much capability as possible. It's a wireless Bluetooth over-ear with Active Noise Cancellation rated to reduce ambient noise by up to 48dB. That number is the headline, and if you've ever tried to focus on a plane, a bus, or in a noisy open office, you know why ANC matters more than almost anything else. Alongside it, FJHBL lists Hi-Res Audio and 40mm large-aperture dynamic drivers, plus spatial sound for a 360° effect that's aimed squarely at movies and gaming.
Battery is the second pillar. FJHBL claims up to 60 hours of continuous playtime with ANC off, and around 40 hours with ANC on. Even discounting those figures a little for real-world conditions, that's a multi-day headphone for most people — you charge it on the weekend, not every night. The detachable high-sensitivity boom mic is a smart touch: keep it on for calls and in-game chat, pop it off when you just want to listen. FJHBL also mentions a quick-charge feature, so a short top-up covers a commute.
Comfort and portability round it out: ultra-soft breathable ear cushions, an adjustable lightweight headband, a fold-flat design, and a protective carrying case. It's built for extended wear and for living in a bag.
Who should buy it: commuters, students, remote workers, and gamers who want one headphone for noise cancelling, long battery life, and voice chat. Who should skip it: anyone shopping specifically for a young child. There's no volume limit listed, no kids-focused durability claim, and the whole appeal — ANC, wireless, a boom mic — is adult-oriented. It's also worth noting it's not a USB-C wired-only device like the K3; it's a Bluetooth headphone with a wired option and a detachable mic in the box.
• Best for young kids and school use → EarFun K3. The volume limit, recycled build, and charge-free USB-C wiring are exactly what parents want.
• Best for noise cancelling → FJHBL Headphones. ANC rated up to 48dB versus no noise control at all on the K3.
• Best for battery life → FJHBL Headphones. Up to 60 hours with ANC off and roughly 40 hours with ANC on; the EarFun K3 has no battery because it's wired.
• Best for calls and gaming chat → FJHBL Headphones. It includes a detachable boom mic; the EarFun K3 lists no microphone.
• Best for "it just works" simplicity → EarFun K3. Plug into a Type-C tablet, Chromebook, or PC and go — no pairing, no charging, no app.
• Best for travel and commuting → FJHBL Headphones. ANC, spatial sound, a fold-flat design, and a carrying case make it the better long-journey companion.
• Best for durability around rough handling → EarFun K3. It's explicitly built from kids-friendly materials to survive daily wear, and it folds for storage.
• Best for immersive movie and gaming audio → FJHBL Headphones. Hi-Res Audio, 40mm drivers, and spatial sound are aimed at exactly that.
In my opinion, most people reading this comparison should buy the FJHBL Headphones. It does more: noise cancelling, wireless freedom, a 60-hour battery claim, spatial sound, and a detachable mic cover commuting, work, and gaming in one product. I'd only steer you to the EarFun K3 if the buyer is a child or teen who needs a wired, volume-limited headphone for school and tablet use — in that case the K3 is the smarter, safer pick, and it's the one I'd hand to a kid without a second thought. Different jobs, different winners.
The EarFun K3, clearly. It's designed for kids with a volume limit, recycled materials, and a wired USB-C connection that never needs charging. The FJHBL is a general-purpose wireless headphone with no volume limit listed, so it's better suited to teens and adults.
Yes — FJHBL lists Active Noise Cancellation rated to reduce ambient noise by up to 48dB. That's the kind of reduction that makes a real difference on planes, buses, and in noisy rooms. The EarFun K3 has no noise control at all.
The FJHBL Headphones, without question — up to 60 hours with ANC off and about 40 hours with ANC on. The EarFun K3 has no battery because it's a wired headphone. If you hate charging things, the K3's wired design sidesteps the issue entirely.
Yes. It ships with a detachable high-sensitivity boom mic and supports both wired and wireless use, so it works for voice calls and in-game chat. The EarFun K3 doesn't list a microphone, so it's a listening-only headphone.
That depends on what you need rather than on the sticker. Value here means fit-for-purpose: the K3 is the better value for a child who needs a durable wired school headphone, while the FJHBL packs more features per purchase for an adult who wants ANC, wireless, and a mic. Check the current price on Amazon for both and match it to your use case.
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