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Updated: 2026-09-18 · 7 min read · Independent comparison
• BRAINWAVZ Replacement Earpads — biggest strength: one pad set that covers a wide range of Bose models (QC2, QC15, QC25, QC35, AE2/AE2i/AE2w, SoundLink and SoundTrue), with PU leather, soft foam, a pre-fitted attachment ring and replacement scrims.
• BRAINWAVZ Replacement Earpads — biggest trade-off: because it is built around the Bose mounting system, it is not a universal pad. If your headphones are not on the Bose list, it will not help you.
• YunYiYi Replacement Earpad — biggest strength: memory foam cushioning and a no-tools, two-step installation that takes seconds on the iJoy Logo ISO over-ear headset.
• YunYiYi Replacement Earpad — biggest trade-off: it is a single-model fit with no mounting ring in the box, so you have to work with the iJoy's own attachment method.
• Who BRAINWAVZ is for: Bose QuietComfort or SoundLink owners who want a proper drop-in set with the hardware already attached.
• Who YunYiYi is for: iJoy Logo ISO STL owners who want a cheap, fast refresh and care most about comfort and isolation.
The BRAINWAVZ set is a Bose-first replacement pad. The fitment list is the whole story here: QC2, QC15, QC25, QC35, AE2, AE2i, AE2w, SoundLink and SoundTrue. That is a lot of ground for one product, and it matters because QuietComfort owners often own more than one pair across those generations. One box can serve the QC25 you keep at your desk and the QC35 you travel with.
Materials are pitched at comfort and sound rather than pure budget. The pads use high-grade PU leather over soft foam, and BRAINWAVZ frames the goal as restoring both the seal and the original sound quality once the old cushions have flattened out. That is a fair way to think about worn pads: when the foam collapses, the pad stops sealing against your head, and the bass and isolation go with it. Fresh foam and leather bring that seal back.
The practical detail I like most is the mounting hardware. Each pad arrives with a pre-fitted attachment ring, plus a fresh set of scrims in the blue colorway with 3M tape already applied. No tools are needed, and there is no fiddling with loose rings or hunting for adhesive. For anyone who has replaced Bose pads before, that pre-fitted ring is the difference between a five-minute job and a frustrating twenty-minute one.
Who should buy it: Bose QuietComfort or SoundLink owners whose pads are cracking, flaking or flattened, especially if you want the install hardware included and a pad that is designed to survive heavy daily use. Who should skip it: anyone with a non-Bose headset, and anyone who wants a universal pad they can move between brands. This is a targeted product, not a one-size-fits-all cushion.
YunYiYi takes the opposite approach: one headset, done simply. This pad is made for the iJoy Logo ISO over-ear Bluetooth headset STL. If that is your headphone, the fit question is already answered, and you can focus on the two things this pad is actually good at — comfort and isolation.
The cushion is memory foam. YunYiYi describes it as ear-conforming, and that is the real benefit of memory foam versus plain foam: it compresses where your ear and glasses press and springs back where it does not, so the seal stays more even around the ear. A better seal means less outside noise leaking in and less of your audio leaking out. YunYiYi also claims the pads return to their original shape when not in use, which is what keeps a memory foam pad feeling supportive over time instead of going flat.
Installation is deliberately low-effort. Two steps, no tools, seconds rather than minutes. There is no mounting ring and no tape in the package — just one pair of earpads, with the headphone itself not included. That is worth being clear about: if you are expecting the Bose-style ring-and-scrim kit, this is not that. You are getting the cushions and you reuse whatever attachment your iJoy already uses.
Who should buy it: iJoy Logo ISO STL owners dealing with worn, uncomfortable or flaking pads who want a quick, no-tools refresh and prioritize comfort and noise isolation. Who should skip it: anyone whose headphones are not the iJoy Logo ISO STL. The compatibility list is that specific.
• Best for Bose QuietComfort owners → BRAINWAVZ Replacement Earpads. It is designed around that mounting system and lists QC2, QC15, QC25, QC35, AE2/AE2i/AE2w, SoundLink and SoundTrue.
• Best for iJoy Logo ISO STL owners → YunYiYi Replacement Earpad. It is tailored to that headset specifically.
• Easiest install with the least guesswork → BRAINWAVZ. The pre-fitted attachment ring, pre-applied 3M tape and included scrims mean the hardware comes with the pad.
• Simplest two-step install → YunYiYi. No tools, no ring, seconds to fit — provided you are comfortable reusing your headset's existing attachment.
• Best for multi-headphone households → BRAINWAVZ. One set covers several Bose generations, so you are not buying a different pad for each pair.
• Best for comfort and isolation on a single headset → YunYiYi. Memory foam that conforms to the ear and returns to shape is the core of this pad.
• Best for long-term heavy use → BRAINWAVZ. PU leather and soft foam, with the brand explicitly building the pads for years of use rather than a one-season stopgap.
• Least flexible if you switch brands → both, honestly. BRAINWAVZ is Bose-locked; YunYiYi is iJoy-locked. Neither is a universal cushion, and that is the single most important thing to check before buying either.
In my opinion, the BRAINWAVZ Replacement Earpads are the better buy for most people reading this, and it comes down to the included hardware. The pre-fitted attachment ring, the 3M tape and the replacement scrims turn pad-swapping into a genuine drop-in job, and the wide Bose fitment list means the set stays useful even if you own more than one QuietComfort model. The PU leather over soft foam is aimed at the two things worn pads steal from you: comfort and a proper seal.
I would pick the YunYiYi Replacement Earpad only if you own the iJoy Logo ISO over-ear headset STL. In that case it is the correct pad, the memory foam conforms well, and the two-step install is about as easy as it gets. But if your headphones are Bose, the YunYiYi pad is simply not built for them — and if your headphones are iJoy, the BRAINWAVZ pad is not either. Match the pad to the headset first, then let the details decide.
The BRAINWAVZ Replacement Earpads. Its fitment list covers QC2, QC15, QC25, QC35, AE2, AE2i, AE2w, SoundLink and SoundTrue. The YunYiYi pad is made for the iJoy Logo ISO over-ear headset instead.
No. BRAINWAVZ ships each pad with a pre-fitted attachment ring and pre-applied 3M tape, so it mounts without tools. YunYiYi uses a two-step, no-tools method that takes seconds. The difference is that BRAINWAVZ includes the mounting hardware and YunYiYi does not.
YunYiYi leans hardest into this, using memory foam that conforms to the ear and returns to its original shape. BRAINWAVZ uses PU leather over soft foam to restore the seal and comfort of worn Bose pads. Both target the same problem — a flattened pad that no longer seals — through different materials.
I do not quote prices here, because they move around. Use the "Check latest price on Amazon" button on this page to see the current cost of each, then compare that against how many of your headphones each pad actually fits.
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