We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-22 · 7 min read · Independent comparison
If you want wired over-ear headphones tuned for long listening sessions at home, choose Koss 154336; if you need dedicated hearing protection for shooting, mowing or construction work, choose SULWZM Hearing Protection Ear. These two products get compared because both sit on or around the ear and both cut down outside sound, but they solve completely different problems. One is a studio-style headphone. The other is a safety device. In my opinion there is no real overlap in the buying decision once you look at the specs.
• Koss 154336 — biggest strength: full-size over-ear design with a wide 16 Hz–22 kHz frequency response, 60 ohm impedance and 101 dB sensitivity, built for accurate sound reproduction rather than pure blocking.
• Koss 154336 — biggest trade-off: it's a wired headphone with a single-entry coiled cord, so it's tethered to your gear and it is not a certified safety device with a published NRR or SNR figure.
• SULWZM Hearing Protection Ear — biggest strength: an NRR 28 dB / SNR 34 dB rating with ANSI S3.19 and CE EN 352-1 certification, which is the number that actually matters when you're standing next to a mower or a firearm.
• SULWZM Hearing Protection Ear — biggest trade-off: it's a passive protector with no audio electronics, so it won't play music, take calls or reproduce any frequency range.
• Who Koss 154336 is for: home listeners, studio users and anyone who wants one pair of comfortable, isolating wired headphones for extended daily use.
• Who SULWZM Hearing Protection Ear is for: shooters, landscapers, construction workers and anyone whose priority is protecting their hearing in genuinely loud environments.
The Koss 154336 (model R-80) is a full-size, over-ear wired headphone in black. The engineering details tell you what it's chasing: oxygen-free copper voice coils for signal transmission and conduction, dynamic element construction with neodymium iron boron magnet structures, and a frequency response of 16 Hz to 22 kHz. Add 60 ohm impedance and 101 dB sensitivity and you have a headphone that behaves like a proper home/studio unit rather than a phone accessory. The 8-foot single-entry coiled cord with a 3.5 mm plug, plus included 1/8-inch and 1/4-inch stereo plugs, is a clear signal that Koss expects this to live plugged into a desk setup, a mixer or a home stereo — not clipped to your shirt on a run.
The isolation here comes from the closed, leatherette ear cushions, which form a seal around the ears. Koss frames that seal as doing two things: enhancing bass frequencies and decreasing ambient noise. This is passive noise cancellation, not active. So you get some real-world quieting, and the extra-large cushions plus pivoting ear cups and an adjustable headband are aimed squarely at long wear. That combination — pivoting cups, adjustable headband, big cushions — is what makes an over-ear headphone survive a four-hour session without you wanting to take it off.
Buy Koss 154336 if you want one pair of comfortable, wired, full-size headphones for home listening, mixing, editing or gaming marathons, and you value a detachable coiled cord and a lifetime warranty from a long-established headphone brand. Skip it if your actual goal is protecting your ears from gunfire, mowers or job-site noise, because there's no published noise reduction rating here and no safety certification — that's simply not what this product is.
The SULWZM Hearing Protection Ear is a purpose-built passive hearing protector in red, made from ABS plastic with a foldable design. The headline number is the rating: NRR 28 dB with an SNR of 34 dB, certified to ANSI S3.19 and CE EN 352-1. In the world of hearing protection, that certification and that number are the entire point. An NRR of 28 dB is a serious reduction figure — it's the class of protection people reach for at an indoor range, on a riding mower, or next to a chop saw.
SULWZM describes the intended environments directly: shooting, mowing, operating machinery, construction sites and airports. It also mentions quieter use cases like resting and studying, which makes sense because a good passive muff is just as useful for blocking a noisy roommate as it is for blocking a leaf blower. The ergonomic angle matters too: the brand says it revised the padding to reduce pressure on the head, which is the difference between a muff you wear for twenty minutes and one you forget you have on for two hours. The foldable ABS build means it collapses down for a range bag or a truck console, and there's a stated refund-or-exchange policy if something goes wrong.
Buy SULWZM Hearing Protection Ear if your ears are the thing you're protecting and you need a certified, rated, foldable muff you can grab for range days, yard work or loud job sites. Skip it if you wanted headphones — there's no audio driver, no frequency response and no way to play anything through it. It silences your surroundings; it doesn't entertain you.
• Best for protecting hearing in loud environments → SULWZM Hearing Protection Ear. NRR 28 dB / SNR 34 dB with ANSI S3.19 and CE EN 352-1 certification is the concrete reason.
• Best for listening to music or monitoring audio → Koss 154336. A 16 Hz–22 kHz frequency response and dynamic drivers mean it actually reproduces sound.
• Best for all-day comfort during long sessions → Koss 154336. Pivoting ear cups, an adjustable headband and extra-large leatherette cushions are all aimed at extended wear.
• Best for portability and storage → SULWZM Hearing Protection Ear. The foldable ABS design collapses down; the Koss is a full-size headphone with an 8-foot coiled cord.
• Best for a desk, mixer or home stereo → Koss 154336. The 8-foot single-entry coiled cord plus 1/8-inch and 1/4-inch plugs are built for stationary gear.
• Best for range bags and toolboxes → SULWZM Hearing Protection Ear. Red, plastic, foldable and rated — it's designed to be thrown in and pulled out.
• Best for durability coverage → Koss 154336. A lifetime warranty is stated for this model, which suits a product meant to be used for years at a desk.
• Best if you want both jobs done → buy both. Honestly, these aren't competitors. A home listener who also shoots needs one of each, and they don't overlap.
If I had to pick one, I'd pick based on what you're actually doing. For listening — music, editing, gaming, long desk sessions — I'd buy the Koss 154336, because the frequency response, the 60 ohm impedance, the pivoting cups and the detachable 8-foot coiled cord all point to a headphone built for hours of wired use. But if your reason for searching "hearing protection" is that you're about to stand next to loud noise, I'd buy the SULWZM Hearing Protection Ear without hesitation, because a certified NRR 28 dB rating is the only spec on this page that's genuinely about protecting your ears. Don't buy a headphone for a safety job, and don't buy a muff for a listening job.
No. The Koss 154336 has closed leatherette cushions that decrease ambient noise as a side effect of the seal, and it's listed as passive noise cancellation. But it has no published NRR or SNR rating and no safety certification, so it isn't a substitute for rated hearing protection.
It's rated at NRR 28 dB and SNR 34 dB, certified to ANSI S3.19 and CE EN 352-1. Those are the figures to compare against your environment — the higher the NRR, the more reduction the protector is rated to provide.
Not on their own. It's a passive protector with no audio driver or connectivity listed, so it blocks sound rather than playing it. If you want to listen while you work, the Koss 154336 is the one with a driver, a frequency response and a 3.5 mm plug.
Check the current price on Amazon for both before deciding, since I don't quote prices here. In my opinion, value depends on the job: the Koss 154336 earns its place through sound quality and a lifetime warranty, while the SULWZM earns it through a certified 28 dB rating and a foldable, portable build.
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