Sennheiser IE 300 in-Ear Audiophile Headphones - Sound Isolating with XWB Transducers for Balanced Sound, Detachable Cable with Flexible Ear Hooks, 2-Year Warranty (Black)

Very uncomfortable to wear, mainly due to the cable being too large or unflexible and stiff. I was unable to get a good seal with any of the included tips as well as my own (i have 7 different sets of tips - none of them fitted, too small for some reason) The connectors seemingly at random would cut in and out I was unable to confirm the sound quality due to poor seal, however it did have a very poppy feel to what Ive heard so far even without a good seal If youre planning to buy this, be ready to fork up some more bucks for additional replacement parts

Arrived slightly uncleaned, only 1 earbud is working no audio in the right one, and I did not get the additional tips and cleaning that should've been in the case.

Muy bueno x el precio Los más cómodos IEM que he probado Sonido cálido y buen punch de bajos EQ V shape Super recomendados sin dudarlo

I order the first one and three months the right driver stopped working I returned it and order another one and the same issue occurred so I didn’t bother returning again so just saying it’s an amazing iem but it has issue my other IEM’s I didn’t faced any issues with

I had given up on trying to find IEMs that could stay in my ears untillll I saw Z Reviews video of the IE300 on April 20th. After I finished watching his review I immediately checked the price on Amazon.ca and saw it for $280 (Ships from and sold by Amazon.ca) which shocked me cause it is $400 at MSRP here in Canada. I watched other reviews from other YouTubers such as DMS, Joshua Valour, and Chrono from The HEADPHONE Show to hear more opinions and bought them afterwards. Once I got them I tried the smallest foam ear tips cause my ear canal are extremely small and they are pleasant to wear that it fits like a glove for me! Extremely lightweight cause of the plastic build and compact shape. The cable has this memory retention thing which is annoying to get used to but it actually makes the IEMs stay in my ears forever without budging. For sound quality I would say this is a very fun and enjoyable listening experience. It is not trying to be a flat and accurate tuning here, so do not consider this product if that is what you look for. It feels like I am listening through headphones because it has a nice sense of space around you with good imaging and presentation for vocals. I thought I would not like this tuning cause I enjoy vocals the most with my music but there is just something about these that make it feel special. When it comes with female vocals that sound soft, it just feels so dreamy with these IEMs it makes me melt (Example: MISIA - Everything). And even though the vocalist is not in your head, it is more like they are in front of you like you are on stage with them as they perform because of the soundstaging this is capable of. Even though vocals are not as intimate as I like, they still get that spotlight with these IEMS. However, these do lack the timbre of like other Sennheiser series like 58X, 6XX, and 660S, which is what I miss a lot but the IE 300 are still so so so much fun to listen to. Sometimes with the highs it does hurt my ears but that is when I listen to music at higher volumes than normal. Oh there is also a lot of bass. It says it can go all the way down to 6hz and I believe it. I thought I was a basshead but man it is WAYYYYY too powerful for my liking. But... It is also awesome when you in the mood for it lol (Example: ZHU - Only). So was it worth for $280? Heck yeah! What about $400? Now that is a tough choice cause there is many other options you could pick in that price range. I personally would have bought these over anything else because I prioritize comfort more than sound quality when it comes to IEMs cause I enjoy long hours of listening and being active without worrying they will fall out. For me these IEMs are all that I could ask for which is why I give them a high praise. One thing I absolutely hate about these IEMs is the recessed MMCX connector... Sennheiser you guys thought you were so cool making them detachable and swapping out cables but nope. You guys suck for doing that. I love this cable but not everyone does. Oh yeah I am running this off of a BTR5 non-balanced, stock foam tips, and sources are FLAC files and Spotify streaming. Does not need a lot of power so this and the Apple Dongle would be the best pairing for the money. Update [10/18/2021]: I voided my warranty and used an exacto knife to shave off the R&L colour indicators which also makes the MMCX connectors recessed. I did it so I can use FiiO's UTWS3s and IT WORKS muahahahah. I recently found out about the UTWS5 but I am happy with mine since it is enough to power the IE300s (but if reviewers say it's amazing to upgrade I wouldn't mind getting it...). So now I have very amazing TWS earphones that are lightweight and comfy :D