Comply 500 Core Series | Memory Foam Replacement IEM Ear Tips for KZ, Moondrop, FiiO Sennheiser & More | Superior Noise Isolation, Ultimate Comfort, Secure Fit | Black, Large (3 Pairs)

These memory foam tips made a significant difference in both comfort and performance compared to the standard silicone tips that came with my in-ear monitors. I used them with a set of earbuds that accept the 500 core size, and the fit was snug without being tight or irritating. Once compressed and inserted, they expand gently to form a secure seal in the ear canal, which not only improves comfort but also enhances passive noise isolation.The material is soft, compressible, and feels much more natural during long listening sessions. With the large size, I didn’t experience any pressure buildup or soreness even after hours of wear, which is a big improvement over firmer silicone alternatives. They stayed in place well whether I was seated, walking, or doing light movement—no constant readjusting needed.In terms of sound, the improved seal noticeably boosted bass response and clarity, likely due to reduced sound leakage and better channeling of audio. It doesn’t change the tuning of the IEMs dramatically, but it brings out their full potential if you’ve been struggling with a loose or inconsistent fit.Each pair held up well through multiple uses. They do compress a bit faster over time compared to silicone, but that’s expected with memory foam tips. Keeping them clean and dry between uses helps maintain their shape.Overall, these tips are a worthwhile upgrade if comfort, isolation, and a secure fit are priorities. They’re a great match for compatible IEMs and deliver real benefits without needing to switch earbuds entirely.

First off, I love these earphone tips! I've been using my first set for 3 weeks now.I have these on my Jaybird Bluebuds X earbuds - and yes, they do fit.You're going to read a lot of negative reviews on here about how the center of the earphone tip is too small for the Jaybird earbuds. If you hold the foam tip next to the jaybird ear piece, why yes, you've made a correct observation. The foam tips input center IS smaller than the jaybird earphone piece. Why wouldn't it be? I want to make sure these tips are secure on my headphones. I mean, come on, you just spent $135 on a pair of headphones... do you really want your headphones wobbling around in your ear and have it fall out and hit the ground? You want it to be a firm hold to prevent that scenario. Yes when you install these foam tips onto your device, you'll need to have firm squeeze on the piece, and as you push, twist the earphone tip and it'll glide right on (with little effort).Now that we have gotten that taken care of, lets talk about the quality of this product.Its exactly whats pictured. 3 pack of black isolation earphone tips. The material its made of I would describe as very similar to foam ear plugs that you would use for swimming, shooting guns, or sleeping. I'm your average male. I purchased the large earphone tip for one reason, its expandable foam. Even if it was too large, at least its expanding foam. But this isnt the case. These are the perfect size for my ears and I would say that I have your average size of ear canal. Large tips will compress really small, for easy insertion into the ear canal, then slowly the foam will expand molding to your inner ear. Works great!All in all, I'm very happy with this purchase. The isolation earphone tip really helps drown out outside noise and deepen the bass as well as make the treble more crisp.

First off. I'm using these with my jaybird bluebyds xthis is a great product. far superior then the stock silicon ear tips. from the start I skipped the other sizes and went straight To the large ones which felt just right and dramatically improved my sound qualitythey reduce sound and keep the ear pieces from falling out through an entire work out and my 7 hour work shift. I don't even use the stock hooks that came with the headphones. (I use the over the ear method)However...this will be my second pair because my right ear bud tore and after a while they loose their elasticity. Maybe a month or 2 since my first pair was used.but 14 dollars every few months for a replacement set of 3 large isn't so bad since they work so well.but because I work in construction my hands are covered in grime and its not ideal at keeping things pretty so I imagine under different circumstances these would last longer.

Got these for the sound core sleep a20's. You have to work a bit to get them on, but they do fit and the sound isolation is well worth the effort. They are a night and day difference to the supplied tips. In addition to the superior sound isolation they also provide a much better fit and comfort. Would highly recommend these to anyone looking for improved noise isolation, fit, and comfort.

These do a great job. They're comfortable and the isolation helps sound quality. The highs are not shrill and the low end is great.

Very comfortable! Prompt Deliery and really helps improve sound quality from your earbuds

These foam earpiece fits the Bang & Olufsen (B&O) H5 earphones nicely. These works very nice when it's new. After a couple 3-4 months of usage, the foam gets squished and stayed small and doesn't comes back to it's original fullness and it's firmness. It does isolate sounds pretty, but don't expect any full noise cancellation. Minus 2 star because of poor quality of the foam and it breaks down fairly quickly. Requiring constant replacements.

They are really good seal well and don't feel to be brittle like the bootleg foam tips.