We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-19 · 7 min read · Independent comparison
If you want a bone conduction headset built around clear voice pickup on calls, choose MAIRDI Open Ear Bone; if you need a low-latency open-ear headset with a mute button for meetings and media, choose ZGUKJ Open Ear Headphone. Both are open-ear designs with a boom mic and a USB dongle for PC work — the split comes down to how they handle sound, latency, and battery.
• MAIRDI Open Ear Bone — biggest strength: true bone conduction drivers plus a dedicated bass vocal vibrator, a boom mic with dual-mic ENC rated to cut up to 98% of background noise, and a USB dongle for PCs without Bluetooth.
• MAIRDI Open Ear Bone — biggest trade-off: 8 hours of playtime and a titanium alloy neckband that is built for movement, not for lounging — and there is no low-latency audio codec listed.
• ZGUKJ Open Ear Headphone — biggest strength: aptX, aptX LL and aptX HD support on Bluetooth 5.1, which is the headline feature for anyone who cares about audio delay in video calls or gaming.
• ZGUKJ Open Ear Headphone — biggest trade-off: the audio driver is listed as bone conduction, but the marketing copy describes an open-ear structure that sits outside the ear canal — so read the specs carefully before assuming how it delivers sound.
• Who each is for: pick MAIRDI if your day is voice calls in noisy places; pick ZGUKJ if you want low-latency audio and a quick mute button for meetings and media.
The MAIRDI M200V is a bone conduction headset first and a work headset second. It uses actual bone conduction drivers, and MAIRDI adds a "bass vocal vibrator" to compensate for the thin low end that bone conduction usually suffers from. That is a real design decision, not a marketing flourish — it tells you the company knows bone conduction sounds weak on bass and built around the problem. The result, based on the spec sheet, is an open-ear headphone that keeps your ear canal clear while still trying to give you something closer to full-range sound.
Where it gives ground: 8 hours of music and calls per charge, 200 hours of standby, and magnetic charging. That is a normal workday, not two. And 32 grams on a titanium alloy neckband is light, but the frame is designed to hug your head during activity, including under a helmet or with glasses. If you want a headset you forget you're wearing while lying on the couch, this isn't the shape for it. If you want one that stays put while you move and keeps your voice clear in a loud room, this is the one.
ZGUKJ Open Ear Headphone: Who It's For
The ZGUKJ DGLK02 sells itself on latency and convenience. Bluetooth 5.1 with Qualcomm audio technology, and support for aptX, aptX LL and aptX HD — that low-latency codec is the feature that separates it from the MAIRDI. If you have ever watched someone's lips move a beat before the audio arrives on a video call, you know why aptX LL matters. For meetings, online teaching, gaming and real-time conversation, reducing that delay is the whole point.
The microphone setup is also more button-friendly: ENC environmental noise reduction to focus on your voice, plus a dedicated mute button. Anyone who has fumbled for a software mute during a webinar knows the value of a physical switch. The neckband is silicone, listed as over-ear placement with a hook shape, and it stays outside the ear canal. ZGUKJ rates it at up to 10 hours of working time from a 250mAh battery after about 2 hours of charging at DC 5V — roughly two more hours per charge than the MAIRDI.
The dongle situation is worth reading closely. You get a USB-A and USB-C dongle plus a Type-C power cable, which covers modern laptops and older desktops alike. But ZGUKJ states plainly that the dongle is for audio transmission only — it will not drive a Bluetooth mouse or keyboard. That is an honest limitation, and it means you should not buy this expecting a general-purpose Bluetooth adapter.
One spec note that deserves a flag: the audio driver is listed as a bone conduction driver, while the product copy describes an open-ear structure that sits outside the ear canal. Those two things are not the same, and the sheet does not fully reconcile them. I would treat the "open ear, outside the canal" description as the safer expectation and not assume a true bone conduction experience the way you would with the MAIRDI.
• Best for call clarity in noisy rooms → MAIRDI Open Ear Bone. Dual-mic ENC with an adjustable boom mic, rated by the maker to cut up to 98% of background noise.
• Best for low-latency audio → ZGUKJ Open Ear Headphone. aptX LL support is the single biggest technical differentiator here.
• Best for longer battery life → ZGUKJ Open Ear Headphone. Up to 10 hours of working time vs 8 hours on the MAIRDI.
• Best for true bone conduction sound → MAIRDI Open Ear Bone. It is the only one of the two whose design and copy consistently describe bone conduction drivers.
• Best for quick muting during calls → ZGUKJ Open Ear Headphone. The physical mute button beats digging through call software.
• Best for plug-and-play on a Bluetooth-less PC → MAIRDI Open Ear Bone. The USB adapter is included and described as plug and play with computers.
• Best for a wider accessory kit → ZGUKJ Open Ear Headphone. You get a protective case, a Type-C cable and both USB-A and USB-C dongle options.
• Best for workouts and movement → MAIRDI Open Ear Bone. The titanium alloy neckband is explicitly designed to prevent slippage, even with a helmet and glasses.
My Verdict
In my opinion, the MAIRDI Open Ear Bone is the better buy for most people shopping this comparison. It is the more coherent product: bone conduction drivers, a boom mic with dual-mic ENC, multi-point pairing, and a dongle for Bluetooth-less PCs all point at one clear job — keeping your voice clear while your ears stay open. The ZGUKJ is genuinely stronger on latency and battery, and if you spend your day in video meetings or care about lip-sync, that aptX LL support is a real advantage. But I'd rather have the headset whose specs match its purpose from top to bottom. Check the current price on Amazon before you decide, since that is the one variable that can flip this call.
On paper, yes for noisy environments. MAIRDI pairs an adjustable boom mic with dual-mic ENC rated to reduce up to 98% of background noise. ZGUKJ uses ENC too, but its edge is the mute button and low-latency audio rather than maximum noise rejection.
Yes. ZGUKJ supports aptX, aptX LL and aptX HD on Bluetooth 5.1, and aptX LL is specifically a low-latency codec. The MAIRDI sheet lists Bluetooth 5.3 and bone conduction drivers but no low-latency codec, so expect more audio delay there.
MAIRDI lists 8 hours of music and calls with 200 hours of standby. ZGUKJ lists up to 10 hours of working time from a 250mAh battery after about 2 hours of charging. ZGUKJ wins on raw runtime; MAIRDI wins on standby.
Both include a USB dongle. MAIRDI's adapter is described as plug and play for PCs, laptops and Macs. ZGUKJ includes both USB-A and USB-C dongles but notes the dongle is for audio only — it will not run a Bluetooth mouse or keyboard.
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