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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-28 · 7 min read · Independent comparison
• MZYMI 2.4GHz — biggest strength: Dual 2.4GHz lossless and Bluetooth 5.4 wireless with a 40mm dynamic driver, 7.1PRO surround processing, and a claimed latency under 30ms. It is a headset, not a speaker: you wear it.
• MZYMI 2.4GHz — biggest trade-off: Battery life is finite (20 hours listed, 25 hours with the carrying case's own battery), it is plastic-bodied, and it does not put sound in the room for other people to hear.
• kstime Computer Speakers — biggest strength: Real stereo separation from dual 52mm drivers at 14W RMS, a 15° rear-tilted cabinet, and a bass reflex port, plus a built-in mic and a front headphone jack.
• kstime Computer Speakers — biggest trade-off: No battery at all — it is USB powered — and it is explicitly not compatible with TVs, so it lives on a desk.
• Pick MZYMI 2.4GHz if you want private, lag-conscious audio for gaming and calls while you move around.
• Pick kstime Computer Speakers if you want shared, room-filling sound anchored to one desktop setup.
The MZYMI 2.4GHz is a gaming headset built around wireless freedom. It pairs over 2.4GHz lossless for the low-latency link that matters in competitive games, and it also carries Bluetooth 5.4 with a 15-meter range for phone calls and casual listening. The 40mm dynamic driver with 50-ohm impedance and 7.1PRO surround processing is aimed at positional audio — footsteps, gunfire direction, the kind of cues that make a headset worth wearing for hours. The over-ear nylon mesh earcups are described as breathable rather than sealed, which matters if you wear glasses or game in a warm room.
On-ear controls keep you out of menus: push-button volume, mute, call answer, track skip, and light control all sit on the headset itself. Charging is fast at about two hours to full, and the listed average life is 20 hours on the headset, 25 hours when you factor in the carrying case's battery. The carrying case is a real inclusion here — cardboard and plastic construction, roughly 22 by 19 by 17 inches in its listed dimensions, with a 300g weight. It also ships with a cable, has a 3.5mm jack for wired fallback, and a microphone port.
Who should buy it: players on PC or PS5 who want one wireless headset for both game audio and voice chat, plus Bluetooth for their phone. Who should skip it: anyone who wants speakers that fill a room, anyone who dislikes on-ear pressure over long sessions, and anyone who needs a wired-only, zero-battery-maintenance setup. It is also worth noting the environmental noise cancellation here is a feature of the headset's processing, not an isolating seal — do not expect active noise cancelling levels of quiet.
The kstime Computer Speakers are a different category entirely: a pair of USB-powered desktop speakers, model ST300, measuring 6.4" H x 3.1" W x 3.1" D and weighing 1.4 lbs combined. The design idea is the 15° rear tilt. Instead of firing straight forward into your monitor stand, the cabinets angle back so the drivers aim at your ears, which cuts down on desk reflections and opens up the stereo image. That is the single most interesting thing about this product and it is a legitimate design choice, not marketing filler.
Under the hood: dual 52mm full-range dynamic drivers, 14W RMS total, two audio channels, and a curved bass reflex port that is meant to reduce turbulence and give cleaner low-end extension than a sealed cabinet. For music, movies, and general desktop use, that combination should produce a wider, more physical sound than any headset can, simply because the drivers are separated across your desk rather than pressed against your skull. The front headphone jack is a genuinely useful touch — it lets you switch to private listening without crawling behind the PC. The built-in mic handles calls and chats.
Connectivity is where you need to read carefully. It supports Bluetooth 5.4, USB, and AUX. The seller's own usage notes are specific: when using Bluetooth with a PC, do not connect the 3.5mm audio cable — connect USB for power only, then press the control knob to switch to Bluetooth mode. It is compatible with desktops, laptops, smartphones, and tablets, and explicitly not compatible with TVs. Controls are touch-based on the unit. In the box: a 49" combo audio/USB cable and a 43" speaker bridge cable, backed by a 12-month limited manufacturer warranty.
Who should buy it: desk workers, students, and anyone who wants decent stereo sound for a laptop or desktop without wearing anything. Who should skip it: gamers who need positional surround and low-latency voice chat, and anyone who wants a battery-powered speaker they can carry to another room.
Side-by-Side: Which Should You Choose?
• Best for gaming and voice chat → MZYMI 2.4GHz. The 2.4GHz link, sub-30ms latency claim, 7.1PRO surround, and boom mic port are all built for that job. The kstime has no surround processing.
• Best for music, movies, and shared listening → kstime Computer Speakers. Dual 52mm drivers at 14W RMS with physical separation beat a single headset driver for room sound.
• Best for private listening at a desk → kstime Computer Speakers. The front headphone jack does it in one motion, and it also has a built-in mic for calls.
• Best for long sessions without charging → kstime Computer Speakers. No battery, so no charging anxiety. MZYMI lists 20 hours on the headset and 25 with the case.
• Best if you wear glasses or overheat easily → MZYMI 2.4GHz. Nylon mesh earcups are specified as breathable, which sealed cushions are not.
• Best if your desk has limited space → kstime Computer Speakers. Compact footprint at 6.4" x 3.1" x 3.1" per unit, with a tilted profile that needs less depth than uprights.
• Best if you want both → buy both. These two are complements, not substitutes. Many desks end up with speakers for daily use and a headset for late-night gaming.
In my opinion, the honest answer depends on which problem is actually bothering you. If you are a gamer or you take a lot of calls and you want audio on your head with low latency and Bluetooth for your phone, I would buy the MZYMI 2.4GHz — the 2.4GHz plus Bluetooth 5.4 combination and the sub-30ms latency target are exactly what that use case needs. If you sit at a desk all day and want sound in the room, a mic, and a headphone jack in one compact package, I would buy the kstime Computer Speakers; the 15° tilt and bass reflex port are real acoustic design decisions, not decoration. Check the current price on Amazon before you commit, since that is the one variable I cannot speak to here.
how to connect bluetooth headphones for pc
On a PC, enable Bluetooth in your system settings, put the headphones in pairing mode, and select them from the list of available devices. The MZYMI 2.4GHz headset supports Bluetooth 5.4 with a listed 15-meter range, so it works this way as well as through its 2.4GHz dongle. If your PC lacks reliable Bluetooth, the 2.4GHz link is the more stable path for gaming.
how to use bluetooth headphones for pc
Once paired, set the headset as both the output and input device in your sound settings so the microphone routes correctly. The MZYMI 2.4GHz has push-button controls for volume, mute, and answering calls, so you rarely need to touch the PC. Keep the headset within the 15-meter Bluetooth range, or switch to the 2.4GHz connection for lower latency.
how to bluetooth headphones to pc
The general sequence is: turn on Bluetooth on the PC, hold the headset's power or pairing button until its indicator light signals pairing mode, then confirm the connection on screen. The MZYMI 2.4GHz lists an indicator light among its controls, which is what you watch during that step. The kstime Computer Speakers also use Bluetooth 5.4, but their own instructions specify USB power only with no 3.5mm cable attached, then a press of the control knob to switch modes.
how to pair bluetooth headphones pc
If pairing fails, remove the device from your PC's saved list, restart Bluetooth, and pair again from scratch. Distance matters — the MZYMI 2.4GHz is rated for 15 meters, so walls and interference will shorten that. For a desktop setup that does not need pairing at all, the kstime Computer Speakers run over USB or AUX, which sidesteps the issue entirely.
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