COMPLYMemory Foam Replacement Earbud Tips for Bose QuietComfort, Ultra, II | Ultimate Comfort, Secure Fit, Superior Noise Isolation | Black (S/M/L) (3 Pairs)

I've been struggling for years with the QC2 earbuds. So bad to the point that I went back to headphones and put them on a shelf to collect dust.One trip, I forgot my headphones and had to grab the buds again, struggled with them falling out while eating, sleeping, walking, etc. I figured enough time had passed that better options may be available outside of what Bose offered (I did try the Bose pack of alternate sizes as well).These snap on and fit secure on the ear buds. They fit in the case and charge fine (Medium at least). They are much more comfortable, they don't fall out of my ears, the noise cancelling is far better with them. I can't speak to endurance yet, but the fact they come in a 3 pair pack is very nice. Hopefully they are still for sale if/when I need to buy more.

These tips work perfect for my needs. I have Bose QuietComfort Ultra earbuds and these tips provide a tight fit. My earbuds have never fallen out. After 20-30 minutes of continued exercise they will work a little bit loose so I have to reinsert them. They also provide an additional layer of sound dampening so in combination with the Bose technology in the earbuds I hear virtually no outside sounds (3 different sound settings are available on the Bose if you do want some outside sound). They do accumulate ear wax and I have to replace the tips every month or two depending on my usage.

They are soft, but it comes with a screen which means the sound now goes through dual screens, thus reducing sound quality. Then I noticed that the buds noise cancellation does not work at all with these tips. I tested both these tips and the OEM ones. The OEM ones allow for amazing noise cancellation, while these comply tips make it sound as if you have zero noise cancellation. Refuding ASAP.

I learned a few things getting these eartips and I think these are important tips for people new to earbuds:1. My left and right ear canal are slightly different sizes. I didn't realize it until testing each ear with these foam tips. Apparently this is a common asymmetry. Once I swapped to the right size for each ear, the fit and ANC improved both with and without foam tips.2. As the title says, ANC is improved (very slightly) and fit is tighter, but there is a larger decrease in sound quality. This was apparent when listening to any music with lots of high treble notes.3. Bass is improved (very slightly). Since the fit is tighter, naturally the bass is improved. But the bass on these are already very good without foam tips, so not a huge improvement.This product is a great solution to those struggling with the perfect fit, since the foam kind of conforms to your ear canal after inserting them in. If however you can find a mix match fit with the regular tips, you will find the sound quality is a degree higher than with the foam tips. Whether they are worth it for you really depend on if you are struggling with the correct fit.TLDR: Great for getting the perfect fit and maximizing bass, but reduces sound quality.

The tips provided by Bose for the QC 2 didn’t work for me. My skin gets oily, as well as my ears, and the silicone tips can never stay seated in my ears for long. Even when they’re in tight they feel like they’re sliding out and I need to readjust them constantly.I have similar tips for my AirPod Pro 2 so I thought I’d give these a shot. They’re exactly what I needed! The QC 2 now stay put in my ears with no issue. I can even move around/work out/run and they still stay put.Sound quality does sound a tad bit muffled but the trade off for having ear buds that I can actually use and that stay in my ears is worth it. I will NOT be going back to the factory/oem silicone tips.For those complaining about ANC degradation I found that by linking my QC 2 with the Bose app on my iPhone I was able to make sure the proper noise cancellation mode was always selected, which should be “Immersive” if you want maximum strength ANC. The noise cancellation is still superb, and if anything more noise seems to be blocked out for me due to the ear buds having a tighter seal.All in all a worthy purchase for me. YMMV but for those who have trouble with the stock silicone tips always moving around and having to readjust give these a shot.

Initially really liked but tip become quite stiff and not as comfortable within just a few days

Whenever I would eat or just simply yawn, the default silicone tips would not securely keep the earbuds in place. Though they completely remove from my ears, the earbuds lose its seal and I would have to readjust them.However, buying these foam ear tips for my QC Ultras were a life changer. They were easy to install, and were identical in size compared to the included silicone tips. They also looked pretty nice. Foam wasn’t too firm as many other reviews complained about— they seemed to be a perfect of soft and firm. They feel dense, and feel quality. They also fully fixed my yawning issue. They don’t slip out and stay in the same place I put them in my ears.

Price is a bit steep but worth the price to be able to use headphones on the go. My main reason for buying them is the screen in the tip to stop debris(ear wax) from destroying the headphone. Will see how they work over longer term use but initial impressions are good. Sturdy for a foam tip, easy to mend and put in ear, sound and noise cancellation is the same change between the oem rubber tips. Tips fit in case, ear wax doesn't stick to foam as easy as the rubber, way less slippery too. If you are debating purchasing, its worth a try.