SONICFOAM (SF4 Large Black) Memory Foam Earbud Tips for Earbuds with Speaker Diameter 4.4-5.7mm - (10 Pack / 5 Pairs) - Fits Most Charging Cases

Fit my Tozo NC-9 buds as advertised - including fitting in the changing case. A great upgrade from the OEM silicone tips that came with these. These ear tips improved fit, wearability, comfort, and sound isolation. Easy to use and stay ears as placed without much, if any, adjustment.

Preface: I exclusively use Comply tips and I heavily use them. They're in my ears 8 to 10 hours when I'm awake. I also sleep with them in. I'm a side sleeper too. So when I say I heavily used that's what I mean. They take a serious beating. These are better than Comply in pricing, packaging, and fit. I can't comment on durability yet, as it has only been a week or so since I got these. Each pair supposedly lasts about a month. Comply tips last one month of heavy use from my experience. Even if these happen to last a little less, like three weeks of heavy use these would still be a winner. I'm glad I stumbled upon this brand because Comply has been robbing me blind for far too long and all the Chinese brands with slapped keyboard names are terrible. I will be updating this in the future with durability if there are any significant issues or they last less than a month. 10/20/2025 Update on durability I'm upping my rating to 5 stars. Today is the first time I changed the tips out and it's not because they fell apart. They were just gross from earwax. This is going to be my go to brand from now on. Comply can't hold a candle to it. I've never had Comply tips last anywhere near the lifespan of these. Like I said they haven't even fell apart despite heavy use since July. They're still in one piece and completely functional.

I should have taken the amazon warning of "frequently returned item" for these seriously. They are cheap, tiny, wastes of time. The foam is extra low density, low quality, and will break down faster than good quality Comply foam. The size is laughable. The "large" size is HALF the size both high and width of large Conply's for the same earbuds. Serves me right trying to save a few bucks. Now I have to waste time returning them. Literally the only good thing about them is the neat mini tackle box they come in.

So the good stuff first.... These earbuds are great, they fit my ear and fit on practically any earbud I throw at them. They feel great and they rarely ever fall out. Literally the only time they fall out is when I wear them to bed, which I totally get if I'm switching sides and everything. So now the bad.... This entire pack of earbud tips will last me 3 months. The dumb part about it is that their major flaw I feel like can be easily fixed, because these earbuds are 2 pieces put together and after about 2-3 weeks they will separate, thus breaking them. If these earbuds were one continuous piece, or if they were welded together with a stronger adhesive or something THESE WOULD BE PERFECT. I would gladly pay 2-3x the price so that I would only have to buy this pack once and I'll be all set for the next 1-2 years or basically until I need to buy another headset. Because of this flaw, yes I'm a repeat customer, but only until I find a better product that doesn't need to be repurchased every 3-4 months. The only saving grace is that these are $15, but a part of me feels like this flaw was an intentional design for this exact purpose.

Makes bass amazing. I have the OnePlus 4 buds and these eartips are an amazing set for them. They are very comfortable and shape to your ears easily

These are quite good, fit well on my JBL Tune 230NC buds. They are slightly less dense than Comply tips but costs 10% as much and seem just as durable. I’ve used them riding bicycles and motorcycles for several months now and they are very comfortable. I have no complaints about this product and no regrets about the purchase.

It seems that finding the perfect earbud tip is like searching for the holy grail. I decided to give the sonicfoams a chance for my Earfun Air pro 4s. For the longest time, I thought I used a Medium silicone tip. Until i tried the large tips on my Loop experience for concerts. I decided to go with the large on the soincfoams tips, and glad I did. I checked the website for compatibility, and the one thing that I haven't had a problem with is the case because the earbuds sit sideways. Once they came in, I couldn't wait to put them on and try them out. WOW! what a difference these made especially in sound quality. The really do enhance the low end. I use my earbuds for running, and listening to music on my lunch break. Combine these with the ANC of the earbuds, and they really isolate the music. Not safe for running, but GREAT for sound. It says that each pair is guaranteed to last at least 4 weeks. I'm not sure that I'm on board with disposable tips TBH, so we'll see how they hold up, and what that looks like down the road. But for the meantime, I feel they are definitely worth it.

I have two pair of Raycons Everyday and Fitness happy to report Sonic Foam has made wearing for hours on end possible. and they fit in the cases as well. Great Job!

Firstly the good bits. These fit very securely onto my buds (Soundcores), almost too securely as I'm slightly worried about damaging the speaker when removing. Also they are *exactly* the same size as the Soundcore L silicone tips that come with the buds, very well made. However, there is one big difference between silicone and memory foam. When you compress a silicone tip on two sides, the ends then expand outwards keeping the same circumference. So for me - presumably without perfectly round earholes - I find the L silicone buds fit perfectly and have very little air gap to leak sound in or out - they adapt to the ear canal shape well. With memory foam, if you compress 2 sides, the ends do not expand. I find these less comfortable to wear as they are pressuring my ear canal ever so slightly, but at the same time there must be gaps at both ends as I find more background sound gets in, and I do not find the bass anywhere near as good as with the silicone tips, presumably this is leaking out. So despite the size being the same, I think I'd need the equivalent of an XL in memory foam to form a tight seal, and I'd expect this would be even less comfortable for wearing for long periods. It may just be the shape of my ears, but they are most definitely not for me. If you're lucky enough to have round ear canals (how do you check this?!) then they may be great for you.

These are great and well worth the money. Are they slightly sticky at first, yes, but that is expected. They mold well to the ears, they are very comfortable and they improve the audio. I ordered the large, but should have got the medium, that is not the sellers fault, that was my own mistake. I will be buying more from tthe seller in the future, medium next time though. These are a total upgrade to the generic ones I have got with my multiple IEM's it is amazing how these can completely enhance the audio experience. Would I recommend these and the seller, simple answer it, yes, 100%

I never had a problem with silicone tips 'till I got Samsung Buds2 Pro. With the supplied ones, I find they are not very comfortable. I tried some cheap foam ones and were more comfortable did not sound good. So, tried these. At last Comfort AND good sound. Still not a perfect seal I don't think, but I'm putting that down to my size of my ear holes combined with the "short" nature of the Buds2 Pro. Would defensively recommend.

Bought to replace worn stock ear tips for Sony WF 1000 MX. They do the job but I was expecting better from what I had read online. Size Large feels smaller than the large that came with the earbuds and ANC is significantly impacted.

These are great. The SF4's aren't as deep/long as the SF2's so fit into charging cases better. I currently have these on my Denon Perl Pro's and my Soundpeats Capsule Pro 3 Plus earbuds. I reckon they'll be fine for my Oppo Enco X2's and Oneplus Buds Pro 3 as well. They create a good seal and don't fall out.