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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a simple, comfortable, foldable on-ear headphone for everyday listening and calls, choose TCL Mtro200; if you need a tunable, multi-driver in-ear monitor for gaming and critical listening, choose ooopusX Op.24.
• TCL Mtro200 — biggest strength: A light, on-ear wired design with 32 mm dynamic drivers tuned for big bass, plus a built-in mic and in-line remote for calls and track control. Biggest trade-off: It's a single fixed sound profile with sound isolation (not active noise cancellation), so it won't match a hybrid multi-driver IEM for detail or tuning flexibility.
• ooopusX Op.24 — biggest strength: A hybrid 2 dynamic driver + 4 balanced armature setup with a physical tuning dial that switches between two sound profiles, using a 0.78 mm 2-pin cable. Biggest trade-off: It's an in-ear monitor aimed at enthusiasts, so it demands a proper fit and a wired source, and it's a more involved product than a plug-and-play on-ear.
• Who the TCL Mtro200 is for: Commuters, students, and casual listeners who want a comfortable on-ear they can fold up and take anywhere.
• Who the ooopusX Op.24 is for: Gamers and detail-focused listeners who want to adjust their sound and don't mind an in-ear fit.
The MTRO200 is the definition of a straightforward wired headphone. It uses 32 mm dynamic drivers, and the whole design leans toward deep, rich bass rather than analytical neutrality. TCL pairs that with closed acoustics and a noise-isolating fit, which means the seal does the work of blocking out background noise — a busy street, a train, a noisy office. That's a different approach from active noise cancellation, and it's worth understanding the distinction: the MTRO200 reduces what reaches your ears by fitting snugly and sealing, not by generating anti-noise.
Comfort is clearly a priority here. The ear cushions are soft leather, and the ergonomic shape was designed for long sessions. I'd read that as a headphone you can wear through a full commute or a long study block without constantly adjusting it. The spec sheet backs up the "easy to live with" story: it weighs 8.48 ounces, folds flat for storage, and connects through a standard stereo wired jack, so it works with basically anything that has a headphone port.
The in-line remote is the quiet hero for anyone who takes calls. You get a built-in mic plus a remote that handles play, pause, track skipping, and accepting or rejecting calls, with tactile feedback on the buttons. If you spend your day bouncing between music and phone calls, that's genuinely useful.
Who should buy it? In my opinion, the MTRO200 suits commuters, students, remote workers on calls, and anyone who wants a comfortable, foldable on-ear with a bass-forward signature and zero setup. Who should skip it? If you want to change how your headphones sound, chase fine detail, or use a swappable cable, this isn't that product. It's one fixed, friendly sound.
The Op.24 is a very different animal, and the spec sheet makes that obvious fast. It's a hybrid in-ear monitor built around two dynamic drivers and four balanced armatures — a three-way architecture. The dynamic side is a custom coaxial pair, a 10 mm and an 8 mm working together across complementary frequency bands. ooopusX says that arrangement cut low-frequency distortion by roughly half an order of magnitude, which is a design claim about cleaner bass rather than just louder bass.
The headline feature is the physical tuning dial. Instead of digging through an app, you rotate a dial to switch between two sound profiles, backed by an internal dual-channel electronic crossover. The two modes change the electrical load: 15 Ω in Mode 1 and 27 Ω in Mode 2. That means the two modes won't just sound different — they'll also interact differently with whatever you plug them into. Sensitivity is listed at 127 dB/Vrms, THD under 1%, and frequency response stretches from 10 Hz to 40 kHz.
The rest of the package is enthusiast-grade too. The cable is oxygen-free silver-plated with a 0.78 mm 2-pin connector, so it's replaceable, and the diaphragm uses a silicone composite carbon-fiber dome. ooopusX also describes reworking the internal cavity topology using simulation and 3D-printed prototypes to chase a more natural balance.
Who should buy it? Gamers who want positional cues and a mic (this version is Type-C with mic), and listeners who like to switch signatures depending on whether they're playing, mixing, or just relaxing. Who should skip it? Anyone who wants to grab a headphone, hit play, and not think about fit, tips, or source matching. An IEM like this rewards a little attention.
• Best for all-day comfort on-ear → TCL Mtro200. Soft leather cushions and an ergonomic on-ear fit built for long sessions.
• Best for sound customization → ooopusX Op.24. The physical tuning dial switches between two profiles on the fly.
• Best for calls and quick control → TCL Mtro200. Built-in mic plus an in-line remote for tracks and calls.
• Best for gaming and detail → ooopusX Op.24. The 2DD + 4BA hybrid setup and Type-C mic version point squarely at gaming and critical listening.
• Best for travel and storage → TCL Mtro200. The flat-folding design makes it easy to toss in a bag.
• Best for cable longevity and upgrades → ooopusX Op.24. The 0.78 mm 2-pin silver-plated cable is detachable and replaceable.
• Best for passive isolation without batteries → TCL Mtro200. Sound isolation via a sealed fit; no charging involved.
• Best for bass extension and range → ooopusX Op.24. A 10–40 kHz response and a coaxial dynamic pair engineered for lower distortion.
If I had to pick one, it depends entirely on how you listen — but I'll commit. For most people who want a comfortable wired headphone for commutes, calls, and everyday music, I'd buy the TCL Mtro200. It folds flat, weighs little, has a mic and remote, and its 32 mm drivers lean into the bass most casual listeners actually want. I'd only steer you to the ooopusX Op.24 if you're a gamer or an IEM enthusiast who values a tunable signature, a replaceable cable, and hybrid-driver detail. In my opinion, the MTRO200 is the easier daily companion; the Op.24 is the more capable tool for a specific kind of listener.
FAQ
For calls, the MTRO200 has the edge for most people. It has a built-in mic and an in-line remote for accepting or rejecting calls, and the on-ear design is easy to put on and take off. The Op.24's Type-C version also includes a mic, but it's an in-ear monitor, so it's a different fit and use case.
No. It doesn't list active noise cancellation. It's a wired in-ear monitor, so isolation comes from how well the tips seal in your ears. The TCL Mtro200 is similar in that regard — it relies on a noise-isolating fit rather than active cancellation.
The MTRO200 uses a single pair of 32 mm dynamic drivers, which is a simple, bass-forward design. The Op.24 combines two dynamic drivers with four balanced armatures across three ways, which is a more complex architecture aimed at detail and a more controlled frequency response. In my opinion, the simpler design is easier to live with; the hybrid is more revealing.
I'd point you to the ooopusX Op.24. Its hybrid driver setup, tuning dial, and Type-C mic version are aimed at gaming and detailed listening. The MTRO200 is fine for casual gaming, but it's built more for music and calls than for positional audio.
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