We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-07 · 6 min read · Independent comparison
If you want a lightweight, easy-to-drive wired in-ear with a mic and a metal build for everyday calls, choose Linsoul KZ ZVX Pro; if you need a dual-diaphragm, high-sensitivity in-ear that prioritizes raw detail and wide dynamics for calls and critical listening, choose AOSHIDA EarAcoustic STA HI. Both are wired 3.5mm in-ears with detachable 2-pin cables and passive noise cancellation — the split comes down to how you want your sound delivered and how much gear flexibility you want. Here's how I'd decide between them for calls, music, and everything in between.
• Linsoul KZ ZVX Pro — biggest strength: A single well-tuned inner-magnetic dynamic driver with a minimized 0.1mm magnetic gap for low distortion, plus an all-metal housing and a built-in mic. Easy to drive at 18 ohm.
• Linsoul KZ ZVX Pro — biggest trade-off: It's a single-driver design, so it won't match a dual-diaphragm setup on sheer resolution, and it leans on its tuning rather than exotic materials.
• AOSHIDA EarAcoustic STA HI — biggest strength: Dual dynamic coils with dual N50 magnets (10,000GS flux), a 10mm beryllium-plated diaphragm plus a 6mm composite diaphragm, and 110dB sensitivity for revealing, fast transients.
• AOSHIDA EarAcoustic STA HI — biggest trade-off: At 32 ohm it's slightly harder to drive than the KZ, and it ships without a microphone, so you'll want a separate mic cable for calls.
• Who each is for: Pick the KZ ZVX Pro if you want an all-in-one wired headset for calls with a mic already on board. Pick the STA HI if you want the most detailed, dynamic sound and don't mind handling your own mic setup.
The KZ ZVX Pro is built around a single newly developed inner-magnetic dynamic driver. What stands out in the specs is the engineering focus: a precision magnetic circuit, a larger magnet, a wider-diameter voice coil, and a magnetic gap tightened to just 0.1mm. In plain terms, that gap reduction is about cutting interference and signal loss so the driver stays clean. The result, per the design, is enhanced sensitivity with reduced distortion — and at 18 ohm and 105dB, it's genuinely easy to drive straight from a phone or laptop jack.
The housing is all-metal, high-density alloy, shaped and polished to a smooth finish. That matters for two reasons: durability, and the fact that a metal shell can help with the passive noise cancellation the specs list. For a best headset for calls use case, the practical win here is that the "With Mic" version includes a mic and a remote control on the cable, so you can take a call without any extra hardware. The 0.75mm 2-pin detachable connector means you can swap cables later if the stock one wears out or you want to customize.
Who should buy it? Anyone who wants one wired in-ear that does double duty: taking calls in the morning and listening to music afterward. The 20Hz–40kHz frequency range is wide enough for most genres, and the tuning is described as genre-agnostic — classical, pop, jazz, rock all get a fair shake. Who should skip it? If you're chasing maximum detail and layering and you already own a good mic cable, the dual-driver STA HI gives you more to work with. Also skip it if you want wireless — this is strictly a 3.5mm wired design.
The STA HI takes a very different approach. Instead of one driver, it runs a dual-core dynamic coil with dual N50 magnets pushing a claimed 10,000GS of magnetic flux density. On top of that, it uses two diaphragms: a 10mm ultra-rigid beryllium-plated one rated at 300GPa, and a 6mm polymer composite diaphragm. A dual-diaphragm setup is generally aimed at fast transient response and high resolution — the specs back this up with transients under 3ms and a low-frequency rebound of roughly 50ms. THD is listed under 0.5% with minimal attenuation under 0.5dB.
Sensitivity is 110dB with a 32-ohm impedance. That combination is interesting: high sensitivity means it gets loud easily, but 32 ohm is a bit more demanding than the KZ's 18 ohm, so a decent dongle or DAC can help it shine. The frequency range is 10Hz–30kHz — a bit deeper on the low end than the KZ, though slightly narrower up top.
Build-wise, it uses a zinc alloy frame with glossy resin surfaces and an electroplated ABS resin cavity. The cable is a mixed weave of oxygen-free copper and silver-plated wire, 1.2m long, terminating in a 3.5mm plug with a 0.78mm 2-pin connector. In the box you get the headphones, a cable, a manual, a leather storage bag, and the packaging.
Side-by-Side: Which Should You Choose?
• Best for calls out of the box → Linsoul KZ ZVX Pro, because the "With Mic" version includes a mic and remote control.
• Best for pure detail and resolution → AOSHIDA EarAcoustic STA HI, thanks to its dual-diaphragm, dual-coil design.
• Easiest to drive from a phone or laptop → Linsoul KZ ZVX Pro at 18 ohm and 105dB.
• Highest sensitivity for loud, dynamic output → AOSHIDA EarAcoustic STA HI at 110dB.
• Best cable flexibility → Both offer detachable 2-pin cables — KZ uses 0.75mm, AOSHIDA uses 0.78mm, so buy the matching type.
• Best for sleep headphones for calls → Linsoul KZ ZVX Pro, since the single-driver metal shell plus onboard mic keeps the setup simple and low-profile.
• Best for a gaming headset for calls → AOSHIDA EarAcoustic STA HI, because fast transients (<3ms) and a 10Hz low end help with positional cues and immersion — just add a mic cable.
• Best all-metal durability story → Linsoul KZ ZVX Pro's high-density alloy shell, though the STA HI's zinc alloy frame is no slouch.
If I had to buy one, I'd take the AOSHIDA EarAcoustic STA HI — in my opinion its dual-diaphragm, dual-coil architecture and 110dB sensitivity give it the edge for anyone who cares most about detail and dynamics, and adding a 0.78mm mic cable solves the calls problem cleanly. That said, if your priority is a best headset for calls that works the moment you plug it in, I'd recommend the Linsoul KZ ZVX Pro instead — the onboard mic, 18-ohm load, and all-metal build make it the lower-friction everyday pick. Either way, check the current price on Amazon before you commit, since the two sit in different value tiers depending on the day.
Yes — the "With Mic" version includes a microphone and a remote control on the cable, so you can take calls directly over the 3.5mm jack. The passive noise cancellation in the metal housing also helps cut some background noise.
Not built in. The STA HI ships with a cable, manual, leather storage bag, and packaging, but no mic. For calls you'd need to swap in a 0.78mm 2-pin cable with a mic.
The Linsoul KZ ZVX Pro. Its 18-ohm impedance and 105dB sensitivity make it very easy to power. The AOSHIDA STA HI is 110dB but 32 ohm, so it benefits from a slightly stronger source or a dongle.
Yes. The KZ ZVX Pro uses a 0.75mm 2-pin connector, and the STA HI uses a 0.78mm 2-pin connector. They are not interchangeable, so match the connector when buying a replacement or a mic cable.
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