We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-27 · 6 min read · Independent comparison
If you want a complete, ready-to-wear open-ear headphone with app-tuned sound, touch controls and real battery life, choose beyerdynamic Amiron Zero; if you need a cheap way to dress up headphones you already own with a themed bow accessory, choose NULYLU 1.
• beyerdynamic Amiron Zero — biggest strength: a full wireless open-ear headphone with a C-shaped clip design, IP54 dust/splash protection, 20 hours of total playtime (6 in the buds, 14 in the case) and a 5-band EQ app. Biggest trade-off: no active noise cancellation, and the open design means you hear everything around you.
• NULYLU 1 — biggest strength: a lightweight silicone bowknot clip that snaps onto headphones you already own and survives repeated use without losing its color. Biggest trade-off: it makes no sound at all — it's a decoration, not audio gear.
• Pick beyerdynamic Amiron Zero if you actually need headphones for running, workouts, commuting or all-day wear.
• Pick NULYLU 1 if you already have a headset and just want a playful white bow for streaming, cheer or a party look.
The Amiron Zero is what most people mean when they say "headphones." It's a wireless Bluetooth 5.4 open-ear model built around a C-shaped clip that wraps around the ear instead of pushing into the canal. The weight — about 57 grams — is spread across the outer ear, and the enclosure mixes plastic, silicone and TPE, which is the sort of material choice you make when the goal is long-wear comfort rather than maximum isolation. If you've ever had earbuds ache after an hour, that design logic is aimed directly at you.
What it does best is let you stay in two places at once. The open design means your music and the world arrive together, which is exactly what you want on a run, on a bike path, or in an office where someone might say your name. It's IP54 rated, so dust and splashes are handled — a quick downpour or a dusty trail won't end the session. Battery is a genuine strength here: 20 hours total, split as 6 hours in the earbuds plus 14 more from the charging case, with USB-C charging and a 10-minute top-up that buys about 2 extra hours. Touch controls handle volume, calls and track skipping, and the beyerdynamic app gives you a 5-band equalizer plus genre presets and software updates. Bluetooth range is listed at 15 meters, and there's no headphone jack — this is wireless only.
NULYLU 1: Who It's For
The NULYLU 1 is a completely different category of product, and that's the most important thing to understand before comparing them. It's a pair of white silicone bowknot clips, roughly 10 x 9 x 0.5 cm each, weighing about 1.6 ounces for the set. They attach to a headset you already own. There's no driver, no battery, no Bluetooth pairing, no microphone. If you came here looking for something to listen to music with, this isn't it.
What it does well is cheap, reversible self-expression. The clip design is described as reliable and secure, so it holds on rather than sliding off mid-session, and silicone keeps it light enough that it doesn't turn a comfortable headset into an uncomfortable one. The material is also the reason it keeps its color after repeated use, which matters for something you clip on and off constantly. It goes on in seconds, so you can match it to an outfit, a stream theme or a mood without any real effort. The intended audience is clear from the listing: cheerleaders, women gamers, streamers and anyone who wants a themed look for a party or as a small gift.
Who should buy it: streamers who want a visual hook, cheer squads coordinating a look, or anyone styling a headset for photos and events. Who should skip it: anyone who needs audio gear, anyone who wants a subtle look, and anyone expecting support down the line — the warranty is listed as none, and the only "media" included is the package itself.
Side-by-Side: Which Should You Choose?
• Best for actually listening to music → beyerdynamic Amiron Zero. The NULYLU 1 produces no sound at all.
• Best for situational awareness → beyerdynamic Amiron Zero. The open design deliberately lets ambient sound in; noise control is listed as none.
• Best for battery life → beyerdynamic Amiron Zero. 20 hours total, with 6 hours in the buds and 14 from the case, plus quick USB-C top-ups.
• Best for customization → beyerdynamic Amiron Zero. App control, a 5-band EQ, genre presets and over-the-air software updates.
• Best for personalizing a headset you already own → NULYLU 1. It upgrades the look of existing gear instead of replacing it.
• Best for cheer, streaming and party themes → NULYLU 1. Themed bowknot styling is the entire point of the product.
• Best for the smallest commitment → NULYLU 1. One clip-on accessory, no charging, no pairing, no setup.
In my opinion, beyerdynamic Amiron Zero is the one worth buying for almost everyone who landed on this comparison, because it's an actual headphone: wireless Bluetooth 5.4, 20 hours of playtime, IP54 protection, app EQ and a clip design meant for all-day comfort. The NULYLU 1 is a fun, well-executed accessory, but it can't replace audio gear and it isn't trying to. Buy the Amiron Zero if you need sound. Buy the NULYLU 1 only if you already own headphones and want to decorate them. Check the current price on Amazon before deciding, since the two sit in completely different budget tiers.
No. It's a pair of silicone bowknot clips that attach to headphones or earphones you already own. There are no drivers, no battery and no Bluetooth, so it produces no audio.
Does the beyerdynamic Amiron Zero have noise cancelling?
Up to 20 hours total — 6 hours in the earbuds plus 14 additional hours from the charging case. Charging is over USB-C, and a 10-minute top-up gives roughly 2 extra hours. A full charge takes about 2 hours.
It's designed as a clip-on attachment for headphones and earphones generally, and the listing emphasizes a secure clip that resists slipping. It's a one-size silicone piece, so fit depends on your headset's shape rather than a specific model.
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