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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-28 · 6 min read · Independent comparison
• EarFun K1 — biggest strength: A 40mm dynamic driver over-ear design with a built-in mic, in-line controls, and a 3.5mm sharing jack so two people can listen from one device. No splitter needed.
• EarFun K1 — biggest trade-off: It's an over-ear kids' headphone at 175g with a fixed Fuscia Pink colorway — bulky and playful if you want something discreet or pocketable.
• JBL Tune 110E — biggest strength: A tiny 9mm dynamic driver in-ear bud at just 0.01kg, with a one-button remote, built-in mic, and a flat tangle-free cable that survives being stuffed in a bag.
• JBL Tune 110E — biggest trade-off: It's a single-purpose listening bud — no sharing jack, no volume limiting, and small ear tips to keep track of.
• Who each is for: EarFun K1 for kids and shared listening at home or school; JBL Tune 110E for adults who want portable bass-forward sound on the move.
The EarFun K1 is unapologetically built for kids, and the spec sheet says so out loud. It uses a 40mm dynamic driver with a 20Hz–20kHz frequency range, 32 ohm impedance, and 100dB sensitivity. A 40mm driver in an over-ear shell is a big, roomy setup — it's the kind of design that fills an ear cup rather than sitting inside your ear canal, which is exactly what you want for a child who'd find tiny in-ear tips uncomfortable or fiddly.
What makes it genuinely useful for families is the sharing jack. Plug a second pair of headphones into the 3.5mm port on the K1 and two kids can watch the same tablet at once — no splitter, no extra cable, no argument. The in-line control handles play/pause, call answer/end, and track skipping, and the cable mic means it works for online classes and video chats. The adjustable headband stretches for different head sizes, the whole thing folds for storage, and the enclosure uses leather and plastic materials described as sturdy and soft, which is a sensible combination for something that'll get yanked around.
Who should buy it: parents shopping for a first real headphone for school, tablet use, or long car rides; anyone who needs a wired set that works across a Kindle Fire Tablet, Switch, Chromebook, or PC via a standard 3.5mm jack.
JBL Tune 110E: Who It's For
The JBL Tune 110E goes the opposite direction: it's a small, light in-ear headphone aimed at adults. The numbers tell the story — a 9mm dynamic driver, 16 ohm impedance, and a 20Hz–20kHz range. Low impedance like 16 ohm is easy for a phone or laptop to drive, so you get usable volume without a headphone amp. The 9mm driver is small, but JBL's material leans hard into Pure Bass tuning, and the brand's whole pitch is deep, powerful low end rather than flat reference sound.
The build is built around portability. It weighs 0.01kg — practically nothing — and comes with ear tips in small, medium, and large so you can dial in the fit. The flat cable is the standout practical detail: flat cables resist tangling far better than round ones, which matters if this lives in a jacket pocket or the bottom of a bag. There's a one-button remote for playback and a built-in mic for answering calls on the fly, plus passive noise cancellation from the in-ear seal itself.
Who should buy it: commuters, students, gym-goers, and anyone who wants a cheap-feeling-free, bass-heavy wired bud that disappears into a pocket. The 3.5mm jack keeps it compatible with basically anything that still has a headphone port.
Who should skip it: anyone who needs to share audio with a second listener, parents shopping for a young child (the age range is listed as Adult, and there's no volume limiting), and people who hate in-ear tips or lose small accessories easily.
Side-by-Side: Which Should You Choose?
• Shopping for a child or tween → EarFun K1. The volume-limit design, adjustable headband, and sturdy materials are aimed squarely at kids.
• Two people, one device → EarFun K1. The 3.5mm sharing jack means no splitter is required.
• Commuting or the gym → JBL Tune 110E. At 0.01kg with a flat tangle-free cable, it's the one that lives in your pocket.
• Bass-first music listening → JBL Tune 110E. JBL Pure Bass tuning with a 16 ohm load that phones drive easily.
• Comfort over long sessions with big ears → EarFun K1. Over-ear cups with a 40mm driver avoid the in-ear pressure some people dislike.
• Discreet, all-black, adult look → JBL Tune 110E. The K1 only comes in Fuscia Pink.
• Widest device compatibility → a tie. Both use a standard 3.5mm wired jack; the K1's spec sheet explicitly names Kindle Fire Tablet, Switch, Chromebook, and PC.
In my opinion, the right pick comes down to who's wearing them, not which is "better." If I were buying for a kid — school, tablets, sibling sharing — I'd take the EarFun K1, because the sharing jack, adjustable headband, and foldable over-ear build solve real family problems that the JBL simply doesn't address. If I were buying for myself to commute or work out, I'd take the JBL Tune 110E: 0.01kg, a flat cable that won't knot, and bass-forward tuning are exactly what portable listening needs. Two different jobs, two different answers. Check the current price on Amazon before you commit, since value shifts over time.
how to wired headphones work
A wired headphone sends an analog audio signal from your device's 3.5mm output jack down the cable to a driver inside the ear cup or ear tip, which converts the electrical signal into sound. Both the EarFun K1 and JBL Tune 110E are passive wired designs: they need no battery, no pairing, and no charging — plug in and play.
how to use wired headphones with iphone
If your iPhone still has a headphone jack, plug the 3.5mm connector straight in. On newer iPhones without one, you need a Lightning-to-3.5mm or USB-C-to-3.5mm adapter, because both the EarFun K1 and JBL Tune 110E terminate in a standard 3.5mm jack. Once connected, the in-line mic and button controls work for calls and playback on both.
how to fix wired headphones no sound
Start with the simple checks: confirm the plug is fully seated, test a different device, and try another pair to isolate whether the fault is the headphone or the source. On the JBL Tune 110E, the one-button remote sits on the cable, so a fault there can cut audio; on the EarFun K1, check the in-line control and make sure nothing is plugged into the sharing jack that's interfering. If a different device still gives silence, the cable or driver is likely damaged.
The EarFun K1 is designed for kids, with a volume-limit feature, an adjustable headband, and sturdy foldable construction. The JBL Tune 110E lists its age range as Adult and has no volume limiting, so I wouldn't recommend it as a child's first headphone.
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