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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want serious hearing protection for loud environments like shooting ranges, mowing, or construction sites, choose SULWZM Hearing Protection Ear; if you need wired USB-C open-ear headphones for calls, music, and staying aware of your surroundings, choose AIAUXAI Open Ear USB. These two products share almost nothing except the word "ear" — one is passive safety gear, the other is a wired audio headset. Let me break down exactly who each one is built for.
• SULWZM Hearing Protection Ear — biggest strength: NRR 28 dB / SNR 34 dB noise reduction, certified to ANSI S3.19 and CE EN 352-1, so it actually blocks loud sound rather than just muffling it.
• SULWZM Hearing Protection Ear — biggest trade-off: It's a passive earmuff with sound isolation only. No Bluetooth, no mic, no music — it silences your world instead of playing anything.
• AIAUXAI Open Ear USB — biggest strength: Wired USB-C open-ear headphones with a built-in mic, volume control, and hook design that lets you hear your surroundings while you listen.
• AIAUXAI Open Ear USB — biggest trade-off: Noise control is listed as "None." It is not hearing protection and won't shield you from gunshots, mowers, or job-site noise.
• Who each pick is for: SULWZM for shooters, mowers, and construction workers protecting their hearing. AIAUXAI for commuters, students, runners, and anyone on a USB-C phone or tablet who wants situational awareness during audio.
The SULWZM earmuff is a purpose-built hearing protector. Its headline spec is a 28 dB NRR rating with a 34 dB SNR rating, and it's certified to both ANSI S3.19 and CE EN 352-1. In plain terms, that's a real, measured reduction in how loud the world reaches your ears — the kind of number that matters at a shooting range, on a riding mower, at an airport, or on a construction site. It uses sound isolation rather than electronics, meaning there's nothing to charge and nothing to pair.
The design is also thought through for long wear. SULWZM says it updated the padding to reduce pressure on the head, which is the usual complaint with cheap muffs after an hour. The whole thing is made of ABS plastic and folds up, so it stows in a bag or range case without eating space. The color is red, it's sized for adults, and it's a single-count item.
AIAUXAI Open Ear USB: Who It's For
The AIAUXAI is the opposite tool for the opposite job. It's a wired open-ear headset that plugs into a USB Type-C jack — no Bluetooth pairing, no battery, no charging. The hook-style earpieces sit over the ears rather than sealing inside them, which is the whole point: you hear your music or call and you can still hear traffic, a coworker, or a gym announcement.
It's built for phone and tablet life. The compatibility list is genuinely long — iPhone 17 through 15 series, Galaxy S26 down through older S and Note models, iPad Pro and Air and Mini, and a wide range of Google Pixel phones. The cable is a 1.2 m oxygen-free copper cord with a fixer clip so it doesn't swing around while you run, plus a PU carrying case for travel and gym bags. There's a built-in microphone and an inline remote with button controls for volume and calls.
Buy it if you live on a USB-C device, want wired reliability without battery anxiety, and value being able to hear what's happening around you. Skip it if your phone still uses Lightning, if you need active noise cancellation (noise control is listed as "None"), or if you're looking for actual hearing protection. This headset makes sound; it does not block it.
Side-by-Side: Which Should You Choose?
• Best for blocking loud noise → SULWZM Hearing Protection Ear. NRR 28 dB with ANSI and CE certification is the entire reason to buy it.
• Best for shooting, mowing, and construction → SULWZM. These are the exact use cases its specs are built around.
• Best for commuting, running, and gym → AIAUXAI. The cable clip, 1.2 m cord, and carrying case are designed for movement.
• Best for battery-free simplicity → both, but for different reasons. SULWZM needs no power because it's passive; AIAUXAI needs no charging because it's wired.
• Best for hearing your surroundings while listening → AIAUXAI. Open-ear hooks let outside sound in; SULWZM's job is to keep it out.
• Best for foldable portability → SULWZM. The foldable ABS frame collapses for storage; AIAUXAI relies on its PU case instead.
• Best for USB-C phones and tablets → AIAUXAI. Its compatibility list covers iPhone 15–17, Galaxy S-series, iPad, and Pixel.
These two don't really compete — they solve different problems, and picking one over the other comes down to what you're actually trying to do. If your goal is protecting your hearing at a range or on a job site, I'd buy the SULWZM Hearing Protection Ear without hesitation: a certified NRR 28 dB rating, pressure-reduced padding, and a foldable body are exactly what that job needs. If your goal is listening to music and taking calls while staying aware of the world, I'd buy the AIAUXAI Open Ear USB — its USB-C plug, mic, and open-ear hooks fit phone-and-tablet life far better than any earmuff ever could. In my opinion, the only real mistake is buying either one for the other's purpose.
how long should over ear headphones last
It depends heavily on the type. The SULWZM is passive — ABS plastic, foldable, no electronics or battery to fail, so its lifespan hinges on the padding and hinges holding up. The AIAUXAI is wired with an oxygen-free copper cable and a reinforced USB-C plug, so its weak point is the cord and connector rather than a battery. Either way, treating the cable and pads well is what extends life.
how long to charge bose over ear headphones
Not applicable here — neither product in this comparison uses a rechargeable battery. The SULWZM is purely passive sound isolation, and the AIAUXAI is a wired USB-C headset that draws audio and power over the cable. If you're specifically shopping for a Bluetooth model like a Bose, this pair isn't the right comparison at all.
how long to charge sony over ear headphones
Same answer: there's nothing to charge in either the SULWZM or the AIAUXAI. That's actually an advantage for both — no battery means no charging routine and no long-term battery degradation. You just put the earmuffs on, or plug the USB-C cable in and go.
how long to charge jbl over ear headphones
Again, no charging is involved with either pick. The SULWZM blocks noise mechanically, and the AIAUXAI runs entirely off the USB-C connection. If your priority is never thinking about battery life, that's a genuine point in favor of both — just check the current price on Amazon and confirm the fit for your own use case before you commit.
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See also: SULWZM Hearing Protection Ear vs MUSICOZY Sleep Mask Headphones, COOYA USB C Open vs YYFEIDBFEO Open Ear Earbuds, Togconn USB C vs GREYOLK Open Ear: Fast Charge Headphones