We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-29 · 6 min read · Independent comparison
If you want a wired, on-ear headphone you can fold up, plug into a phone or laptop, and use for calls or Hi-Res music with a detachable cable, choose ALTEAM On-Ear Headphone; if you need an in-ear monitor with hybrid multi-driver tuning, a physical sound-profile dial, and a Type-C connection with a mic for gaming, choose ooopusX Op.24.
• ALTEAM's biggest strength: a genuinely flexible everyday wired headphone — fold-flat and swivel ear cups, a detachable cable, and two included cables (one silver-plated for Hi-Res listening, one with an in-line mic and call button).
• ALTEAM's biggest trade-off: it's a single 40mm dynamic driver on-ear design with a 3.5mm wired jack, so there's no wireless freedom and no tunable sound — you get one tuning and a cable.
• ooopusX Op.24's biggest strength: a hybrid in-ear monitor with 2 dynamic + 4 balanced armature drivers and a physical dual-mode tuning dial, so you can switch sound profiles on the fly.
• ooopusX Op.24's biggest trade-off: it's an in-ear monitor that depends on a good eartip seal, and this specific model is the Type-C with mic version — it isn't a 3.5mm headphone, so older analog-only gear won't connect.
• Pick ALTEAM if you want a comfortable on-ear headphone for commuting, calls, and casual Hi-Res listening over 3.5mm.
• Pick ooopusX Op.24 if you want a tunable, detail-focused in-ear monitor for gaming, monitoring, and critical listening over USB-C.
The ALTEAM On-Ear Headphone is built around a simple, familiar idea: a 40mm driver in a wired on-ear shell, done with a bit more care than the average budget headphone. The 40mm driver units are the core of the sound — the design aims for rich, resonant stereo with punchy bass, and the Hi-Res Audio certification signals that it can reproduce high-resolution source material without the kind of distortion that cheap drivers introduce. The impedance sits at 50 ohm, which is on the higher side for a portable headphone and tells you it's meant to be driven by a device with a little output behind it rather than a weak dongle.
Who should buy it: commuters, students, and desk workers who want a comfortable on-ear headphone for music and phone calls, and anyone who values a detachable cable and a foldable frame over wireless convenience.
Who should skip it: anyone who wants Bluetooth, anyone who wants to tune the sound signature, and anyone whose phone or console has already dropped the 3.5mm jack — there's no USB-C or Lightning option here.
ooopusX Op.24: Who It's For
The ooopusX Op.24 is a different category of product entirely. It's an in-ear monitor built around a three-way hybrid architecture: two dynamic drivers plus four balanced armatures, with a coaxial 10mm + 8mm dynamic driver pairing. The point of mixing driver sizes is to let each one handle the band it's best at — the design notes say the collaboration between different-sized units helped cut low-frequency distortion by roughly half an order of magnitude. The diaphragm is a silicone composite carbon fiber dome, and the stated frequency response runs from 10Hz to 40kHz, with THD under 1% at 1kHz.
The headline feature is the physical tuning dial. Rather than forcing you into one house sound, the Op.24 uses a dual-mode Tunable Acoustics dial with an independent dual-channel electronic crossover inside, so you can switch profiles to match what you're doing — one mode for music, another for gaming or monitoring. That's reflected in the specs: impedance is 15Ω in Mode 1 and 27Ω in Mode 2, with sensitivity at 127dB/Vrms. The cable is oxygen-free silver-plated with a 0.78 2-pin S connector, which means it's replaceable, and the package includes earphone, eartips, and cable, with a one-year manufacturer warranty.
Who should buy it: gamers, mobile listeners, and anyone who wants a tunable IEM with a replaceable cable and a mic, connected over Type-C.
Who should skip it: anyone who wants an over-ear or on-ear fit, anyone who needs a plain 3.5mm analog connection, and anyone who dislikes the fuss of getting a proper in-ear seal — which is what the whole hybrid design depends on.
• Best for phone calls → ALTEAM On-Ear Headphone. It ships with an in-line mic cable and a one-button control for receiving calls.
• Best for gaming and monitoring → ooopusX Op.24. The Type-C with mic version plus the dual-mode tuning dial is aimed squarely at that use case.
• Best for critical listening and detail → ooopusX Op.24. Six drivers across three frequency bands will resolve more than a single 40mm dynamic driver.
• Best for long wear sessions → ALTEAM On-Ear Headphone. Adjustable headband, soft head strap, and faux-leather foam cushions are built for comfort over time.
• Best for travel and packing → ALTEAM On-Ear Headphone. Fold-flat, swivel ear cups and a detachable cable mean it disappears into a bag.
• Best for cable longevity → ooopusX Op.24. The 0.78 2-pin connector lets you swap the silver-plated cable if it wears out.
• Best for older phones and laptops → ALTEAM On-Ear Headphone. The 3.5mm gold-plated jack works with most devices that still have the port.
• Best for USB-C devices with no headphone jack → ooopusX Op.24. That's the whole reason the Type-C version exists.
If I had to pick one, I'd take the ALTEAM On-Ear Headphone. In my opinion it's the safer buy for most people because it does more jobs at once: it's comfortable enough for a full workday, folds down for travel, handles calls through the in-line mic, and lets you swap to a silver-plated cable when you actually want to sit and listen properly. The 3.5mm jack also means it works with the gear you already own.
I'd only steer you to the ooopusX Op.24 if you specifically want a tunable in-ear monitor — for gaming, for monitoring, or for chasing detail with a hybrid driver setup — and your device has USB-C. That's a narrower, more specialist need, and the Op.24 serves it well. But as an everyday all-rounder, the ALTEAM is the one I'd reach for.
FAQ
No. It's a wired 3.5mm headphone, so it connects with a cable rather than Bluetooth. That's also why it never needs charging.
The model described here is the Type-C with mic version, so it's designed for USB-C devices. If you need a 3.5mm analog connection, the ALTEAM is the better fit.
The ooopusX Op.24. Its Type-C connection with a mic, hybrid multi-driver setup, and dual-mode tuning dial are all aimed at gaming and monitoring, while the ALTEAM is a general-purpose music and call headphone.
Both sit in different categories, and prices move around, so check the current price on Amazon using the button on this page before deciding. Compare the features above first — that's what should drive the choice.
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