How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-24 · 7 min read · Independent comparison
• Linsoul KZ ZVX Pro — biggest strength: an all-metal housing with a 0.75mm 2-pin detachable cable, an inline mic, and a 20Hz–40kHz dynamic driver tuned for everything from classical to rock.
• Linsoul KZ ZVX Pro — biggest trade-off: it's a wired, mic-equipped IEM, so it's built for calls, gaming chat and music listening — not for someone who wants a completely silent, mic-free signal chain.
• KEPAICHI HiFi — biggest strength: a planar magnetic driver with an 8Hz–23kHz range, passive noise isolation, and a deliberately microphone-free design for clean, uninterrupted audio.
• KEPAICHI HiFi — biggest trade-off: no microphone at all, so you can't take calls or talk in game chat without a separate mic.
• Who each pick is for: KZ ZVX Pro for musicians, commuters and all-round listeners who want one wired pair with a mic; KEPAICHI HiFi for gamers and focused listeners who want pure stereo sound and no mic.
The KZ ZVX Pro is the more versatile of the two on paper. It runs a newly developed inner magnetic dynamic driver with a precision magnetic circuit and a wider-diameter voice coil, and Linsoul states the magnetic gap was tightened to just 0.1mm to cut interference and signal loss. In plain terms, that design is aimed at higher sensitivity and lower distortion — you get a driver that should sound controlled and detailed rather than muddy. Sensitivity is listed at 105 dB with 18 ohm impedance, which means it's easy to drive from a phone, a laptop or a modest dongle. The 20Hz–40kHz frequency range covers well beyond what you can hear, which is more about headroom than audible treble.
Build is where this one stands apart. The housing is high-density alloy, shaped, polished and buffed to a smooth finish — a metal shell rather than plastic, which matters if you're hard on your gear or just want something that feels substantial in hand. The 0.75mm 2-pin detachable structure is the real long-game feature: if a cable frays, you replace the cable, not the earphones. It also lets you swap to a different cable or a balanced option if your source supports it. On top of that, this version includes a microphone with remote controls, so it doubles as a headset for calls, meetings and in-game voice chat.
Who should skip it: if you specifically want a microphone-free signal path for critical listening or you prefer a planar driver's character, this isn't the pick. And if you hate dealing with cables entirely, neither of these is for you — both are wired 3.5mm.
KEPAICHI HiFi: Who It's For
The KEPAICHI HiFi (model K10) takes a different angle. Its headline spec is a planar magnetic driver — a different technology from the dynamic driver in the KZ — with a quoted frequency range of 8Hz–23kHz and 108 dB sensitivity at 18 ohm. Planar drivers are generally associated with fast, even response and low distortion, and that matches how this pair is positioned: balanced stereo sound with clear vocals and enhanced bass for everyday music, videos and casual listening. The 8Hz bottom end suggests the low-frequency extension is a design priority, which lines up with the "deep bass" framing.
The second pillar is gaming. KEPAICHI describes improved spatial sound that helps you pick up footsteps and direction changes on PC and mobile. That's the classic positional-audio pitch, and it pairs sensibly with the passive noise isolation from the ergonomic in-ear fit — fewer outside distractions means you hear more of the game. The oval-shaped earpieces and included eartips are there to get a secure seal, which is what actually delivers both the bass and the isolation in any in-ear.
The defining choice here is the missing microphone. KEPAICHI designed the K10 without one on purpose, to keep the signal path clean. If you already have a desk mic, a boom arm or a headset you use for chat, that's a plus — no inline mic module to worry about, no accidental mute button. If you don't, it's a genuine limitation.
Who should buy it: gamers on PC or mobile who want better positional cues and a mic-free audio chain; listeners who want a planar driver and strong bass extension; and anyone who wants a straightforward wired pair for music, videos and work focus. Grey metal housing, one-year warranty, 3.5mm jack.
Who should skip it: anyone who needs to take calls or use voice chat without a separate microphone. The lack of a mic is the whole point of the design, but it's also the one thing it can't do.
• Best for voice calls and game chat → Linsoul KZ ZVX Pro. It has a built-in mic with remote controls; the KEPAICHI K10 has none.
• Best for cable longevity and customization → Linsoul KZ ZVX Pro. The 0.75mm 2-pin detachable cable lets you replace or upgrade; the KEPAICHI is a fixed-cable design.
• Best for planar-driver character and deep bass extension → KEPAICHI HiFi. Its 8Hz–23kHz planar magnetic driver reaches lower on paper than the KZ's 20Hz–40kHz range.
• Best for gaming positional audio → KEPAICHI HiFi. Improved spatial sound for detecting footsteps and direction is a stated design goal.
• Best for all-genre music listening → Linsoul KZ ZVX Pro. The acoustic curve is explicitly tuned for classical, pop, jazz and rock.
• Best for a clean, mic-free signal path → KEPAICHI HiFi. No microphone module in the way.
• Best for build feel → Linsoul KZ ZVX Pro. High-density alloy housing, polished and buffed; the KEPAICHI is also metal but with a simpler classic finish.
• Best for low-distortion engineering detail → both, differently. The KZ targets a minimized 0.1mm magnetic gap in a dynamic driver; the KEPAICHI leans on planar technology instead.
In my opinion, the Linsoul KZ ZVX Pro is the better buy for most people, because it does more jobs at once: a metal build, a replaceable 2-pin cable, a microphone, and tuning aimed at every genre. The detachable cable alone makes it the more future-proof purchase. I'd only steer you to the KEPAICHI HiFi if you specifically want a planar driver, deep bass extension, and a microphone-free chain for gaming and focused listening — and you already have a separate mic for chat. Pick based on the mic and the driver technology, then check the current price on Amazon before you commit.
Yes. The "With Mic" version includes a microphone with remote controls, so it works for calls and voice chat. The KEPAICHI HiFi is deliberately designed without a microphone.
The KEPAICHI HiFi is positioned for gaming, with improved spatial sound for detecting footsteps and direction changes. The KZ ZVX Pro works fine for gaming too, and it adds a mic for team chat, which the KEPAICHI lacks.
The KZ ZVX Pro uses an inner magnetic dynamic driver with a minimized 0.1mm magnetic gap and a wider voice coil. The KEPAICHI HiFi uses a planar magnetic driver with an 8Hz–23kHz range. Both list 18 ohm impedance, so both are easy to drive from a phone or laptop.
Only on the Linsoul KZ ZVX Pro, which uses a 0.75mm 2-pin detachable structure. The KEPAICHI HiFi does not list a detachable cable, so plan on treating its cable as fixed.
Value depends on what you need: the KZ ZVX Pro gives you a mic, a metal shell and a replaceable cable, while the KEPAICHI HiFi gives you a planar driver and a mic-free design for gaming. Compare the current prices on Amazon for both before deciding.
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.
See also: Linsoul KZ ZSN Pro vs Ugreen ClipBuds Open-Ear, Amazon Renewed Beats Fit Pro vs HIFI WALKER A2, LilGadgets Connect+ Pro vs Cleer Audio Enduro 100