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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-18 · 7 min read · Independent comparison
• Corsair HS35 biggest strength: a floating headband with soft fabric ear pads and a 50mm driver, built to stay comfortable across long sessions on PC, Mac, PS5, PS4, Xbox, Switch and mobile via one 3.5mm plug.
• Corsair HS35 biggest trade-off: it's an over-ear, fabric-padded design, so it's bulky to carry and it doesn't seal your ear canal the way an in-ear monitor does.
• KZA COUSTICS Axas biggest strength: a deep in-ear seal with three sizes of silicone tips, which gives you serious passive noise isolation and a focused, intimate soundstage for positional audio.
• KZA COUSTICS Axas biggest trade-off: it's a tiny in-ear set with a thinner 1-year warranty and no on-ear controls, so all your volume and muting happens on your device.
• Who each pick is for: Corsair HS35 for the desk-and-couch gamer who swaps between console, PC and phone; KZA COUSTICS Axas for the player who wants isolation, portability and a repairable cable.
The HS35 v2 is a straightforward wired over-ear headset, and its whole personality comes from two design choices: a floating headband with cushioned fabric ear pads, and a universal 3.5mm connection. The floating headband spreads weight rather than clamping down on one spot, and fabric pads breathe better than sealed leatherette over a long evening. Combined with an 8.96-ounce total weight, that's a headset built around the idea that you'll forget you're wearing it. Corsair also puts the controls on the headset itself — a push-in mute button and a volume wheel — so you're not alt-tabbing or reaching for a system menu mid-match.
The audio side is anchored by custom-tuned 50mm drivers with a 20 Hz–20,000 Hz frequency range, 32 ohm impedance and 114 dB sensitivity. In plain terms: big drivers, an easy load for a controller or phone to drive, and enough sensitivity that you won't be starved for volume from a weak source. The flexible omni-directional microphone handles calls and in-game commands, and because it's attached, you never have to think about where your mic is. Corsair backs the headset with a 2-year manufacturer warranty, which is a meaningful detail for something you'll wear daily.
KZA COUSTICS Axas: Who It's For
The KZA COUSTICS Axas takes the opposite approach and does it deliberately. It's an in-ear monitor with a dynamic driver, 19.98 ohm impedance and a 20 kHz frequency response ceiling, and the entire design is organized around one goal: sealing your ear canal. The deep in-ear fit with S/M/L silicone tips isn't a comfort afterthought here — it's the feature. That seal is what delivers the passive noise isolation, and passive isolation is what makes positional audio cues readable in a loud room. Footsteps, reloads, and directional shifts come through as distinct events rather than a wash, because ambient noise isn't competing with them.
The Axas also leans into voice chat with hardware-level AI noise cancellation that filters background sound so your mic comes through crisp and stable. The fit is described as lightweight and pressure-free, with tips sized so you can find a snug seal without it feeling like a clamp — the usual failure point for in-ears during marathon sessions. And the cable is detachable via a 2-pin gold-plated connector, which means ultra-low signal loss, wear resistance, and the ability to replace or upgrade the cable later instead of retiring the whole set. That's a genuinely useful piece of future-proofing. The warranty is 1 year, shorter than Corsair's, and there are no on-ear controls, so you'll be adjusting volume on your device.
Buy it if you game in a noisy house, you play competitive titles where directional audio matters, you want something that packs into a pocket, or you like the idea of a cable you can swap when it wears out. Skip it if you dislike things inside your ears, you want a boom mic and inline controls, or you need one headset that covers console, PC and mobile without fussing with tips. My honest read: this is the isolation-first pick, and it earns that role.
Side-by-Side: Which Should You Choose?
• Best for blocking out a noisy room → KZA COUSTICS Axas. Deep in-ear seal plus passive noise cancellation is the whole point of the design.
• Best for long-session comfort with no ear-canal pressure → Corsair HS35. Floating headband, fabric pads, 8.96 ounces.
• Best for plugging into anything → Corsair HS35. One 3.5mm connection covering PC, Mac, PS5, PS4, Xbox, Switch and mobile.
• Best for mic convenience → Corsair HS35. A flexible attached omni-directional mic plus on-ear mute and volume, versus the Axas's inline mic setup.
• Best for travel and portability → KZA COUSTICS Axas. In-ear buds with a detachable cable beat a full over-ear headset in a bag.
• Best for repairability and longevity of the cable → KZA COUSTICS Axas. 2-pin detachable, replaceable or upgradeable.
• Best for warranty coverage → Corsair HS35. 2 years versus 1 year.
• Best for big-driver, room-filling sound → Corsair HS35. 50mm drivers, 32 ohm, 114 dB sensitivity.
If I had to pick one for myself, I'd take the Corsair HS35. My reasoning is purely about how I'd use it: I move between a console, a laptop and a phone, and a single 3.5mm over-ear headset with an attached mic, on-ear controls and a 2-year warranty removes every small friction point in that routine. The 50mm drivers and low-impedance, high-sensitivity tuning mean it'll sound full off whatever I plug it into. That said, if your room is loud or your game is ranked, I'd genuinely point you to the KZA COUSTICS Axas instead — the in-ear seal and detachable cable are real advantages the HS35 can't match. Match the pick to your environment, not to a spec sheet winner. And before you commit, check the current price on Amazon using the button on this page.
It depends on where you play. The HS35's 50mm drivers and over-ear fit suit general play across PC and consoles, while the Axas's in-ear seal and passive isolation give it an edge for competitive, positional-audio-focused gaming in noisy rooms.
Yes — that's their core design. The deep in-ear seal with S/M/L silicone tips provides passive noise isolation, and the hardware-level AI noise cancellation filters ambient sound on the mic side so your voice chat stays clear.
Yes. The universal 3.5mm connection is listed as compatible with PC, Mac, PS5, PS4, Xbox, Nintendo Switch and mobile, so one headset covers all of them without adapters.
Corsair covers the HS35 with a 2-year manufacturer warranty, versus 1 year for the KZA COUSTICS Axas. However, only the Axas has a detachable 2-pin cable that you can replace or upgrade, which extends its usable life in a different way.
Both are designed for it, but differently. The HS35 uses a floating headband and soft fabric ear pads to avoid pressure points over hours, while the Axas uses lightweight silicone buds in three sizes to prevent wear fatigue without slipping.
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