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If you want serious in-ear sound quality for focused listening at home or on the move, choose Linsoul KZ AS10; if you need a secure, sweat-friendly wired pair that stays put while you run, ride, or work out — and works for cycling — choose Joysico Sport Running Headphones. Both are wired 3.5 mm in-ear earphones, but they're built for completely different jobs. The KZ AS10 is a five-driver audiophile monitor. The Joysico is a lightweight sports earbud with a wrap-around earhook. That single split in design tells you almost everything you need to know before you pick.
• Linsoul KZ AS10 — biggest strength: Five balanced armature drivers per side with 3D-printed internal acoustics, giving detailed, prominent mids and strong bass for music, vocals and monitoring work.
• Linsoul KZ AS10 — biggest trade-off: It's a "Without Mic" wired monitor with no inline controls, a detachable 2-pin cable and no sports earhook, so it's not built for sweaty workouts or hands-free calls.
• Joysico Sport Running Headphones — biggest strength: Wrap-around earhook design, sweatproof cord, in-line mic and remote, plus small-ear sizing and memory foam tips — made to stay in during movement.
• Joysico Sport Running Headphones — biggest trade-off: A single dynamic driver with a 20 Hz–20 kHz range, so it can't match the KZ AS10's multi-driver detail or 40 kHz extension.
• Who each is for: KZ AS10 → listeners, singers, musicians and drummers who want a wired in-ear monitor. Joysico → runners, gym-goers, cyclists and people with small ears who need a secure fit and call controls.
The KZ AS10 is, in my opinion, the more ambitious earphone of the two by a wide margin. Linsoul packed five balanced armature drivers into each side — one handling bass, two for the midrange, two for the highs — and housed them in a 3D-printed internal acoustic structure that routes sound to two separate outputs at the nozzle. That's an unusual level of engineering for an in-ear at this tier, and it's the whole reason the AS10 exists. The result, per the specs, is a sound signature with strong bass impact, very prominent mids and highs that stay soft rather than sharp. That profile suits pop, vocals and anyone who wants to hear detail in a mix rather than just a wall of bass.
The detachable 0.75 mm 2-pin OCC cable is the feature I'd point a buyer to first. It means the cable is replaceable and upgradeable, which extends the life of the earphones and lets you swap in a cable you prefer. The ergonomic over-ear hook keeps the cable routed behind your ear, which cuts microphonics and helps the fit stay stable. With 14 ohm impedance, 105 dB sensitivity and a 20 Hz–40 kHz range, it's clearly aimed at wired listening from a phone, laptop or tablet with a 3.5 mm jack.
Joysico Sport Running Headphones: Who It's For
The Joysico Sport Running Headphones are designed around one problem: earbuds that fall out. The wrap-around earhook wire is soft and thin, and the company says you can barely feel it even with glasses on. The earbuds themselves are smaller than typical in-ears and shaped to nestle in the ear rather than jam into the canal — which is exactly why they're pitched at people with small ears, including petite women, boys and girls age 8 and up. Memory foam tips are included to improve both sound and noise isolation.
For movement, Joysico adds a few practical touches: a cable clip to stop the cord swinging, a carry case for storage and protection, and a thicker-than-usual cord that's sweatproof for intense exercise. On the audio side, there's a single dynamic driver with a 16 ohm impedance and a 20 Hz–20 kHz range. The company describes the sound as loud and clear with strong bass and no distortion at high volume, and says the angled in-ear design helps block background noise.
The in-line mic sits just below the jaw and is tuned to pick up your voice while filtering background noise — that's the piece that makes this a genuinely useful headset, not just a music earbud. The remote lets you answer and end calls, play and pause, skip tracks, trigger voice commands and adjust volume without touching your phone. If a crystal clear calls headphone for cycling is what you're after, this control setup is the reason to look here. It's a 3.5 mm gold-plated plug, and the company notes that iPhone 7 and newer need a Lightning adapter while some USB-C phones need a Type-C adapter.
Who should buy it: runners, cyclists, gym users, kids and anyone with small ears who can't keep normal earbuds in. Who should skip it: listeners who want maximum detail, a replaceable cable, or the kind of midrange clarity a multi-driver monitor delivers.
• Best for sound detail and monitoring → Linsoul KZ AS10. Five balanced armature drivers per side versus one dynamic driver.
• Best for secure fit during sport → Joysico Sport Running Headphones. The wrap-around earhook is built to stop slippage; the KZ AS10 relies on a standard over-ear cable route.
• Best for hands-free calls → Joysico Sport Running Headphones. It has an in-line mic and full remote; the KZ AS10 is the no-mic version.
• Best for sweaty workouts → Joysico Sport Running Headphones. Sweatproof build and a thicker, more durable cord.
• Best for small ears and kids → Joysico Sport Running Headphones. Smaller-than-normal buds, hook shape and memory foam tips.
• Best for upgradeability → Linsoul KZ AS10. The 0.75 mm 2-pin cable is detachable and swappable.
• Best for frequency range → Linsoul KZ AS10. 20 Hz–40 kHz versus 20 Hz–20 kHz.
• Best all-rounder for commuting and casual listening with control → Joysico Sport Running Headphones. It does music, podcasts, audiobooks and calls from one wired remote.
In my opinion, the right pick comes down to whether you're moving or listening closely. If you're cycling, running or working out and you want a secure fit, sweat resistance and a mic for calls, I'd buy the Joysico Sport Running Headphones — the earhook and controls are built for exactly that. If you're sitting down to actually listen, monitor or practice, I'd buy the Linsoul KZ AS10 for its five-driver detail and replaceable cable. For pure audio ambition the KZ AS10 wins; for cycling and sport the Joysico wins. Check the current price on Amazon before you commit, since value shifts over time.
In-ear earphones sit inside the ear canal rather than resting against the outer ear. Both products here are in-ear designs: the KZ AS10 uses a rounded-tip enclosure with five balanced armature drivers per side, while the Joysico uses smaller angled buds with a hook shape and optional memory foam tips for a snugger seal.
An in-ear monitor is an earphone built for accurate, detailed listening — often used on stage or in studio work. The KZ AS10 fits that description: it pairs five balanced armature drivers per side with a 3D-printed internal acoustic structure, and Linsoul positions it for audiophiles, singers, musicians and drummers.
The Joysico includes memory foam tips you can remove and replace, which makes keeping the nozzle clear easier. The KZ AS10 has a detachable cable and a fixed nozzle, so cleaning means wiping the tip area carefully and keeping the two sound outputs at the base of the nozzle free of debris. Neither includes a cleaning tool in the listed contents.
For cycling I'd pick the Joysico Sport Running Headphones. Its wrap-around earhook, cable clip and sweatproof cord are designed to keep the buds in place during movement, and the in-line mic and remote let you take calls and change tracks without reaching for your phone. The KZ AS10 is a monitor first, with no mic and no sport retention system.
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