Comply 167 Core Series | Memory Foam Replacement IEM Ear Tips for Sennheiser Wired Devices & More | Superior Noise Isolation, Ultimate Comfort, Secure Fit | TechDefender, Black, Medium (3 Pairs)

I've been using these eartips for about a month now, and I like *everything* about them. Before buying, I was reading reviews and noticed that several people commented that they take more pressure to install than normal rubber eartips. That was a definite plus for me, since mine usually get pulled off by seat belts, backpack straps, etc. These are staying in place perfectly.The Sennheiser HD1 M2s already have excellent sound, and these eartips have made it even better. Sound isolation is also massively improved over the standard rubber tips. It's great to be able to listen at lower volume levels with no interference from outside sounds. They're also really comfortable, even for extended wear.Also, I really appreciate that these came in a six-pack of the same size. A lot of similar products come in pairs of multiple sizes, which is pointless once you know the size you need. With these, I can eventually use all three pairs. A few reviewers mentioned durability issues, but I haven't experienced that at all. Even if they do need to be replaced periodically, the audio and comfort improvement is well worth it.Long story short, these are a great product that I'll definitely buy again.

I highly recommend these. I use a pair of Sennheiser 7.0BTs to play white sound and block out sound while I'm working. Even without the white noise playing, these do an excellent job of cutting down background noise. They also fit way better than the eartips provided by Sennheiser: Although you CAN get the Sennheiser tips into a position where they isolate sound well, they are VERY persnickety, requiring you to have them in JUST THE RIGHT POSITION. The Comply tips work more easily and completely, plus they have the extra protection of keeping ear wax out of the Sennheiser sound tunnel.** One note: Get the pack with S/M/L for your first set. It is worth ensuring that you have the right size, as too small doesn't isolate noise well and too big will give you ear aches and possibly headaches as well. Once you get the right size, you can go with the 3-pack of the size you chose, but definitely spend the extra money to get the right ones. ***

Edit: anyone looking to buy these BE WARNED they are a wear item and will only last about a month with daily use. I see a lot of people complaining they fell apart after a month or so, and there are plenty of reviews stating such so anyone buying should be aware ahead of time, if not it's your fault. I do agree, for the price only one month's use is annoying, although with proper care you can extend that a little, still $30 for 3 pairs is exessive.I love these tips, they are much better than the stock rubber tips. They improve passive noise cancelation and sound quality noticeably and are very comfortable/secure. My only complaint is that they get dirty quickly, and they are difficult to clean without damaging them, and they wear out pretty quickly, so they are clearly a wear item that will need to be replaced regularly. A little bothersome for the price, but that's the trade off for better isolation and improved sound I guess.

In order to open it you pretty much have to destroy the packaging. I bought this for my sennheiser ie 800-it doesn't fit. $20 bucks down the drain!!!!!!

The medium tips on the Sennheiser True Wireless 3 fit well, but I always get COMPLY tips because they feel better to me. These medium tips were smaller than the medium silicone tips though, and thus did not fit my ears. I have a really hard time installing these (and the large) tips as well for some reason. I never have had much trouble with other COMPLY tips. Maybe the TW3 ends are slightly larger than other models? Don't know.

I took a leap of faith that it would fit on the CX True Wireless earbuds I just purchased. At first I though I had made a fail because I couldn't get them to fit, then I watched Sennheiser's corporate account youtube video "How to put on Comply foam tips". You have to wedge them on in an arc. It worked fine. They sound great, there is a lot of physical ambient noise rejection that was not there before. The bass is absolutely deeper. They will work their way out of your ear until you get used to the ole twist tip and push'em in fast...

Fits well, sound isolation very good even without ANC, and very comfortable. Use it daily for long periods and they have not deteriorated even with sweat. Stays tight and will not fall out even with exercise.

Perfect fit. These don't fit anything else due to the hard plastic insert inside the foam that snaps onto the Sennheiser ear bud neck, but I bought them for my Sennheisers so I can't complain! Comfort in the ears, too. More so than common floppy buds.