We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-02 · 7 min read · Independent comparison
If you want to rescue a pair of studio or gaming headphones you already own with fresh cushions that seal out noise passively, choose G GVOEARS Replacement; if you need a standalone over-ear earmuff with Bluetooth audio and active hearing protection for loud environments, choose ULTRX Allen Company Bionic.
• G GVOEARS Replacement — biggest strength: Memory foam cushions with protein (PU) leather that rebuild the acoustic seal on worn-out pads, which is exactly how passive noise reduction actually works on a headphone.
• G GVOEARS Replacement — biggest trade-off: It is not a product on its own. Without a compatible headphone it does nothing, and installation takes a little force to snap the pads into the ear cups.
• ULTRX Allen Company Bionic — biggest strength: A self-contained hearing protector rated NRR 22dB with Bluetooth 5.3 streaming and four omni-directional microphones that shut down at 82dB in 0.02 seconds.
• ULTRX Allen Company Bionic — biggest trade-off: It is a safety earmuff first, so the audio experience is built around protection and awareness rather than studio-grade listening, and it costs more commitment than a pair of replacement pads.
• Who each is for: G GVOEARS Replacement for anyone keeping an existing Sony MDR, SteelSeries, Audio-Technica or HyperX headset alive. ULTRX Allen Company Bionic for shooters, woodworkers, landscapers and construction crews who want protection plus music.
This is a maintenance part, and it is honest about that. G GVOEARS sells a pair of over-ear replacement cushions measuring 3.93 x 3.15 x 0.94 inches, plus four wipe pads in the box. The foam is high-density memory foam with a slow rebound, wrapped in soft protein leather. The point of that combination is not decoration — a plush, thick cushion that springs back keeps a consistent seal around your ear, and that seal is what passively blocks outside noise and reinforces bass. When original pads go flat and shiny, both the comfort and the noise isolation collapse with them. Replacing them restores both.
Installation is tool-free: pull the old pads, seat the new ones inside the ear cups, then snap them in. G GVOEARS notes it may take a little force, and that is normal for this style of pad — the tension is what forms the acoustic seal. Buy this if you like the headphones you already have and want more comfort, better blocking and stronger bass without replacing the whole headset. Skip it if you do not own a compatible model, or if you want an all-in-one listening device with its own electronics.
ULTRX Allen Company Bionic: Who It's For
The ULTRX Allen Company Bionic is a completely different animal: a powered earmuff built for loud workplaces and ranges. Its core spec is a noise reduction rating of 22dB, achieved through passive sound isolation in the shell and gel ear cups. On top of that sits a noise-activated system with a 0.02-second response, so sudden loud sounds get clamped down almost instantly.
The electronics are what separate it from a plain pair of muffs. Bluetooth 5.3 lets you stream audio from a phone or tablet while you work, and the tuning is described as digital studio harmonics for clear, natural sound. Four hi-gain omni-directional microphones give you ambient awareness — you can hear people and surroundings around you — and those microphones automatically shut off at 82dB within 0.02 seconds to protect your hearing. That is the classic hunting-and-range design: amplified quiet sounds, instant cutoff for the loud ones.
Comfort and portability are handled too. There is a soft padded headband and gel ear cups for long sessions, and the whole thing folds down for transport and storage. It weighs about 0.4 kg, comes in Midnight Gray, and carries a 2-year manufacturer warranty. Buy it if you spend time on a shooting line, behind a mower, on a construction site or in a woodshop and want protection, awareness and music in one unit. Skip it if your only problem is tired pads on a headphone you already love — you would be paying for electronics you do not need.
Side-by-Side: Which Should You Choose?
• Best for passive noise reduction on an existing headphone → G GVOEARS Replacement. The memory foam and protein leather rebuild the ear seal that blocks noise in the first place.
• Best for loud environments with a hard safety spec → ULTRX Allen Company Bionic. The NRR 22dB rating is the number that matters when you are standing next to gunfire or a table saw.
• Best for listening while you work → ULTRX Allen Company Bionic. Bluetooth 5.3 streaming plus four omni-directional microphones for awareness.
• Best for instant reaction to sudden noise → ULTRX Allen Company Bionic. The 82dB microphone cutoff and 0.02-second response are designed for exactly that.
• Best for travel and storage → ULTRX Allen Company Bionic. It folds down into a compact package; the pads obviously do not.
• Best for a simple, tool-free fix → G GVOEARS Replacement. No charging, no pairing, no electronics — just snap the pads in.
• Best for long-wear comfort → a tie, for different reasons. G GVOEARS uses thick slow-rebound memory foam; ULTRX uses a padded headband and gel ear cups.
In my opinion, most people searching this comparison already own a headphone and are annoyed by worn pads, and for them the G GVOEARS Replacement is the smarter buy — it is a cheap, straightforward way to restore comfort, seal and bass on hardware they already like. I would only point someone to the ULTRX Allen Company Bionic if hearing protection in genuinely loud conditions is the actual job, because that is what it is engineered for, and the Bluetooth and microphone features are a bonus on top of that. Decide based on whether you are fixing a headphone or buying a protector. If price is your deciding factor, check the current price on Amazon before you commit.
what is passive noise cancelling headphones
Passive noise cancelling headphones reduce outside sound without electronics — the physical materials do the work. Thick foam, dense cushioning and a tight seal around the ear block sound waves from reaching your ear. The G GVOEARS Replacement pads are a pure example: memory foam and protein leather restoring that seal.
how do passive noise cancelling headphones work
They work by blocking and absorbing sound before it reaches your ear drum. A well-sealed cushion creates a barrier, and the foam inside soaks up part of the energy. That is why a flat, worn pad lets more noise in — and why a fresh memory foam pad like the G GVOEARS set tightens things back up.
what does passive noise cancelling headphones mean
It means noise reduction achieved by design rather than by a battery-powered circuit. There is no microphone and no anti-noise signal. The ULTRX Allen Company Bionic leans on this too: its NRR 22dB rating comes from passive sound isolation in the shell and gel ear cups, with electronics layered on for awareness and audio.
what are passive noise cancelling headphones good for
They are good for steady, everyday noise — office chatter, traffic hum, a running appliance — and for any situation where you want isolation without charging anything. If you need to block sharp, sudden noise like gunshots or power tools, a rated protector such as the ULTRX Allen Company Bionic is the more appropriate tool.
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