Sennheiser CX 275 S Universal Mobile Headset

I used to use a pair of easy-in, easy-out earbuds for everyday wear, and another pair with the expandable foam tips for wear while running. These have replaced both of them! The fit is very good for me, they stay in while running and are easy to pull out and then put back in (to have a conversation or whatever). There's no volume control, just pause and skip-ahead controls. Have used them a few times for phone calls and nobody on the other end seems to notice I'm using anything odd - what they hear sounds normal through the built in mic. One odd thing - on my Motorola Droid 4, when the phone "sleeps" the controls on the headphones don't work. I have to use the clock's nighttime setting where the phone stays on in a dimmed mode for the controls on the headphones to keep working. Probably a phone specific issue. These are my second pair of Sennheiser headphones and I think my next pair will be from them again - well built and great sound!

This is the best pair of headphones I have ever purchased. These reach the highest highs, and the lowest lows of any song and have exceptional sound quality with clean, unwavering bass, and crystal clear highs. I have put these through hell with blasting music, in fact, they practically work as small speakers, and there is little distortion even at extreme volumes. My pair has had a few trips in the washing machine and they had no problems from that (not that I recommend it). They can handle anything you throw at them with music and physical torment, and I would definitely buy these again, but I don't think I will need to for a long time, because these will last a long time.Pros:Amazing SoundDeep BassExtremely DurablePerfect for those 320kbps High Quality songs that you can't appreciate with cheaper headphonesCons:Tangles EasilyControls only compatible with Apple products5/5, exactly what you need if all you want is a pair of headphones to listen to music with incomparable quality

The earbuds themselves are great! High quality like most of sennheiser's products. Sound quality is great and crisp. If you compare them to the cx 300 II they feel a lot lighter, but also a little more flimsy in that regard. So far they have survived a lot so that isnt too much of a worry. Also if you like heavy bass you might want to try the cx 300 ii, the cx 275 focuses much more on a balanced crisp sound.They are also fairly comfortable and i can keep them in for a long time. They also do come with different sized buds so you can pick the one that fits best.The reason though these earbuds lost some points is the carrying case they came with. If you are a frequent sennheiser buyer, you know how nice the cases are. They are a very nice faux leather with lining. The last pair of sennheisers i had came with a verry nice one that snapped shut, but this one sucks. It has those annoying little draw strings to keep it shut. It womt stay shut unless you tie the strings together, not to mention the knots keep coming undone. I hate those little knots too they use, its like the one knot you have to spend twelve million years mastering to get it right too. After one month i could probally work in a factory making these little cases since i had to retie them one billion times. At the very least it protects the earbuds, but still Really a big set back if you ask me.

My N3AP is dead after 5 years. I bought this pair to replace it. I also own Apple AirPods Pro 2 but I don’t trust its microphone.This pair of earphones is great. Better than I expected!

Pro - Not and audiophile, but the sound is excellent. The Earbuds fit well, fits comfortably and doesn't fall out. Excellent noise isolation.Pouch is convinientCon - The right angle adapter that ships with this device is defective. Sennheiser support is rather lackluster. Generically I was told to ship it to Amazon. When I questioned their warranty they referred me to the warranty claims section. Couldn't find it anywhere on their support site to request a product replacement under warranty. So I had to return it back to Amazon. Amazon made it fairly quick and easy to get a replacement headset. I opened and tested my replacement from Amazon, but a brand new box proved to have the same defective right angle adapter. I tested a right angle adapter from RadioShack(3 pole, no mic adapter) and it worked fine with my phone and the headset. I tried other earbuds with the included right angle adapter and all I can concluded after 2 newly opened boxes was that this is a manufacture defect that needs to be addressed. The chance of getting a bad headset, I can imagine it can happen, you get a lemon. Two in a row, I raise concerns of quality control with the manufacture which and combined with the lackluster product support, defaults this to a one star when they cannot guarantee quality out of a new box.March 12th UpdateAs of March 4th, I was informed by Sennheiser that the CX275s has been added to their product support page. Their support though is still disappointing. I spoke with an audiophile to his opinion about the headset and the right angle adapter apparently is blocking out the center channel on stereo. If I set my player to mono, the right angle adapter blocks all sounds completely. The headset otherwise works just fine if you don't want to bother using their decorative right angle adapter