How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-17 · 6 min read · Independent comparison
• Cooler Master MH670 — biggest strength: Dedicated 2.4GHz wireless with around 1 ms of latency, a detachable omni-directional boom mic, and a foldable, swiveling aluminium-and-leatherette build that travels well.
• Cooler Master MH670 — biggest trade-off: No Bluetooth, so it's tethered to its dongle or a 3.5mm cable; the leatherette cushions also run warmer over very long sessions.
• Monster Mission 350 — biggest strength: A claimed 90-hour battery plus dual wireless (2.4GHz and Bluetooth 6.0), so it can go from PC to phone without swapping hardware.
• Monster Mission 350 — biggest trade-off: Heavier at 0.54 kg, no published latency figure, and the mic specs are vaguer than the MH670's.
• Pick the MH670 if you want the most predictable, lowest-lag audio for competitive PC and console play.
• Pick the Mission 350 if you want one headset for gaming, music on your phone, and days of use between charges.
The MH670 is a gaming-first headset that happens to be unusually portable. The ear cups swivel and everything detachable actually detaches — mic, cable — so it collapses into a bag without you babying it. Cooler Master builds the frame from aluminium with leatherette cushioning on the ear pads, which is a sensible combination for something that gets thrown in a backpack after a LAN night. The whole unit comes in around 346.5 g, which is mid-weight for an over-ear gaming headset and light enough to forget about during a normal evening session.
Audio is where it makes its case. You get 50 mm dynamic neodymium drivers, virtual 7.1 surround sound, 32 ohm impedance, and a frequency range that Cooler Master lists across 15 Hz – 25 kHz, 20 Hz – 20 kHz and 50 Hz – 18 kHz depending on the mode. Sensitivity is rated at 110 dB. The headline number for gamers, though, is the roughly 1 ms audio latency over its dedicated 2.4GHz connection — that's the reason to buy this over a generic Bluetooth set. There's also an omni-directional boom mic, and conveniently the volume, mic mute and 7.1 toggles sit as buttons right on the headset rather than in software.
Who should buy it: PC, PS4, Xbox One and Switch players who want one wireless headset with a wired 3.5mm fallback for mobile devices, and who care more about consistent timing than about style. Who should skip it: anyone who wants to pair wirelessly to a phone without a dongle, or who wants to game for ten hours straight without their ears getting warm. The lack of Bluetooth and the leatherette pads are real limitations, not nitpicks.
The Mission 350 is the more versatile headset on paper, and it leans into that. Monster gives you two wireless paths: a dedicated 2.4GHz low-latency link for PC and console, and Bluetooth 6.0 for phones, tablets and anything else. Switching between them is the whole pitch — you can be in a console match, then pick up a call or stream music on your phone without touching a dongle. There's also a universal 3.5mm jack for wired use across PC, PS4, PS5, Switch, laptops, Mac and smartphones.
The other big number is battery. Monster rates it at 90 hours of average life. That's the kind of figure that means you charge it roughly once a week or less, which matters if you're the type to leave a headset on a desk and grab it whenever. You also get dynamic RGB lighting, and the earcups are memory foam rather than plain leatherette — a genuinely better choice for long sessions because it breathes and molds to your head. Monster describes the build as lightweight with reduced head fatigue, and lists the colorway as black with red accents.
The trade-offs are worth naming. At 0.54 kg it's heavier than the MH670, which sits awkwardly against a "lightweight" claim — that's a spec-sheet number, so judge for yourself. The frequency range is listed simply as 20 Hz – 20,000 Hz, with no impedance or sensitivity published, so there's less to reason about on the audio side. And while the mic is noise-cancelling with a clear focus on filtering keyboard clatter, Monster doesn't publish a latency figure for its 2.4GHz mode. Who should buy it: multi-device users, phone-and-console players, and anyone who hates charging. Who should skip it: competitive players who want a hard latency number before they commit.
Side-by-Side: Which Should You Choose?
• Best for low-latency competitive play → Cooler Master MH670. It's the only one of the two with a published latency figure, around 1 ms over 2.4GHz.
• Best for multi-device switching → Monster Mission 350. Bluetooth 6.0 plus 2.4GHz plus 3.5mm covers phone, console and PC in one headset.
• Best for travel and packing → Cooler Master MH670. Detachable mic and cable, swiveling cups, foldable frame, aluminium construction.
• Best for comfort in long sessions → Monster Mission 350 on paper. Memory foam cushions breathe better than leatherette, though the MH670 is the lighter headset.
• Best for platform spread on a wire → a tie. Both offer a 3.5mm jack and both list PC, PlayStation, Xbox and Switch support.
• Best for a cleaner, less flashy setup → Cooler Master MH670. No RGB, black aluminium, understated by design.
• Best for personalizing your look → Monster Mission 350. Dynamic RGB lighting is built in.
If I were buying for myself, I'd take the Cooler Master MH670. In my opinion, a published ~1 ms latency figure, a 50 mm driver setup, an omni-directional detachable boom mic and a foldable aluminium frame make it the more predictable tool for actual gaming — and predictability is what I want from a headset. The Mission 350 is the better everything-device: 90 hours of battery, Bluetooth 6.0 and memory foam are genuinely appealing, and if you split your time between a console and a phone, I'd point you there instead. But for pure gaming, the MH670's tighter spec sheet wins for me.
Yes, clearly. Monster rates the Mission 350 at 90 hours of average battery life. Cooler Master lists five power levels for the MH670 but no endurance figure, so there's nothing to compare it against. If battery is your priority, the Mission 350 is the safer bet.
Does the Cooler Master MH670 have Bluetooth?
Cooler Master publishes roughly 1 ms of audio latency for the MH670 over 2.4GHz. Monster doesn't publish a latency figure for the Mission 350's 2.4GHz mode, so on the data available the MH670 is the more transparent choice for timing-sensitive play.
The Monster Mission 350 covers that spread most easily thanks to Bluetooth 6.0, 2.4GHz and a 3.5mm jack. The MH670 handles PC, PS4, Xbox One, Switch and mobile, but only over its dongle or a cable — no Bluetooth. Check the current price on Amazon for both before you decide.
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