COMPLY500 Core Series | Memory Foam Replacement IEM Ear Tips for KZ, Moondrop, FiiO Sennheiser & More | Superior Noise Isolation, Ultimate Comfort, Secure Fit | Black (S/M/L) (3 Pairs)

Genuinely required if you want the best audio profile you can get. Coming from an audiophile, if you want to get your money's worth out of the IEMs these attach to, you'll need these. The foam is super comfortable and comes in a variety of sizes to fit your ears best. I ended up using a medium and a large size tip and they fit great. Best way to use them was to crush down the foam then insert them into my ears where they'd fill up, almost like earplugs. The tips' foam quality must be premium because they seal super well in my ears. They also don't degrade easy so they should last you as long as your IEMs do. Highly worth the money, definitely purchase it if you want the best IEM experience.

The KZ (XYZ) stock silicones were buggin my ears...Not comfy and I didn't get that great of sound. Others mentioned that the replacement foams (these ones) help to significantly adjust the presented tone and wearing comfort of the IEMs.They were correct. A little extra they were, but glad I got them. They make the IEM's sound great.Only problem is the goo in my brain that affects the lows when I have these jammed into my ear. It's like the closed ear effect. If you find the right balance of "wedged in" then you might mitigate this effect and get a decent monitor.I might want an open ear IEM in the future, and these buds I'm sure would be excellent. These are great little "memory foams". Firm for the most part. 3 different sizes included. Nothing crazy but it's the little things that count!I'm inclined to remove a star for installation ease, only because of the nature. The others were hard to install as well.BUT DON'T GET ME WRONG This should probably be a 5 star because you WANT these things to be STUCK in place and not come out when removing from your ear (leaving it in your ear!)... That being said in hindsight... These are a 5.If they melt a hole in my head I will update the review and consider dropping them down a star.

I used to be an avid runner, running 6 - 12 miles a day with these things. After I stopped running so much I used this sometimes in the gym. They are great, they do hold in against sweat and provide some level of noise reduction.I have the JayBird BlueBuds X bluetooth headset and these work nicely with the headset. The small tips didn't fit well on my ears, the large tips were too big for me, but the medium were just right as I am able to wear them for an hour with little to no discomfort. The other sizes were uncomfortable. It took a little bit of work to get the tips on the headset, but once they are on they will not come off.Make sure you are gentle when putting them on your device. After about a month of use one of the medium tips ripped and became unusable but the other one was intact. Not sure if this was due to wear and tear on my end, just a defective piece, or if I didn't put the tip on properly. It was just odd because the other tip was still in great condition. I recently bought another set of tips only medium size.I would give this product a 5/5 but because one of the tips ripped I am taking a star off. I also think they are a little pricey for the materials involved. I would buy this if you aren't sure what size you need.

These are a must for in ears. Way more comfortable and sealed than the silicone ones.

I have used the medium size foam plugs on my Sennheiser IE8 earphones and they fit just right as I had expected. Sennheiser for some ridiculous reason, does NOT make MEDIUM size foam ear buds for their earphones which come with their IE series. I even confirmed this with Sennheiser and the customer service agent agreed that, for such an expensive pair of earphones, it is not logical not to have a medium size earbud in foam. Foam insulates the best against ambient (outside) noise so it was a pleasant surprise that the T-500's were very effective, as effective as the Sennheiser foams, in blocking out the sound of the metro (subway), even when I listened to classical music. You don't hear people speaking and they are as effective as the Sennheiser HD-25 series closed headphones in noise suppression.As for the sound quality that some mention regarding the dullness, I don't feel it at all. You may need to increase the high frequencies using an equalizer but the bass is great and the brightness of the sound, mids and highs is very good - just as good as the Sennheiser foam. The material being softer, makes it much more comfortable while still giving an excellent seal around your ear to block out noise. The differences in the hardness of this Comply foam and that of the Sennheiser stock ones can explain the little adjustment required in increasing the highs a bit, but after this, the sound quality is great. I have a pair of Paradigm Studio 20 high-definition speakers and so my listening is quite well trained and attuned to hearing different frequencies. The most important thing is the excellent noise isolation and the comfort, which the Comply T-500s do an excellent job of providing.I would highly recommend the Comply T-500s.

These work great and are comfortable, but after some time they tend to tear. Price isn't bad but you get what you pay for. If you find these nice, buy multiple.

after using cheaper memory foam tips for years, i came back to these and had forgotten exactly how nice they felt and sounded. exceptionally comfortable and effective at forming a seal.

When paired with a set of good quality IEMs, these ear tips deliver a noise cancelling experience.The memory foam will deteriorate (tearing/stiffening) over time. Expect to go through a set every 8-10 months if you use all sizes.This product is a good buy.