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Sennheiser CX275 S Universal Mobile Headset Earphone

5 Review(s)
  • Smartphones can carry enjoy the superior sound quality Sennheiser

With Sennheiser's CX 275s universal mobile music and communications headset, you can hear Sennheiser on the go, regardless of which smartphone you have. Their high-powered dynamic speaker systems provides for an outstanding audio performance while ear adaptors in different sizes allows for an excellent ear canal fit and ambient noise attenuation. Full control is also achieved with the in-line microphone and remote for the easy management of calls and tracks. 

Detailed Parameters
Frequency response (headphones): 17 - 23,000 Hz
Sound pressure level (SPL): 121 dB
Impedance: 16 Ω
Plug: 3.5  mm, 4 级
Cable length: 1.2m
Wearing styles: ear
Transducer original: Dynamic
Polar Pattern: Omnidirectional 
Frequency response (microphone): 100 - 10,000 Hz
Sensitivity: -44 dB

CX275S earplugs
Ear adapters
Ear adapters
Carrying Case


Packing List

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S. Cline "Retired Fed"
Jun 15, 2013 12:42:29 PM
I snatched this since I am profoundly deaf and he's got the iPod, iPad, I-everything and Smarty-Phoneys; he's plugged this thing into everything. Oy Vey! Iffin you buy this for a Holiday Pressie especially for your children, grandchildren or worse ... the adults - HEED THIS WARNING: SURGEON GENERAL'S WARNING: PURCHASE OF ONE ITEM MAY RESULT SIBLING FIGHTS AND/OR MARITAL RIFTS! I am still hearing my son's wife whining "I wanna try it ...." (So she went out and bought another one just like what he has and yet I can't get it back either.)



My son's report:

1) Sound is like the top of the line expensive stereo brand you can think of

2) The ear plugs do fit perfectly without falling off and a BIG BONUS: yes, the cord length is perfect and flexibility <--- a mandatory here with much emphasis I must stress, no more unraveling I noticed when he removes it he is no longer fighting the tangled web it weaves!

3)Depending on the adapter you if you have an adapter this plug will fit right on in to everything you can think of, in fact, my son even used it to plug into the DVR box so he could play his PS3 quietly (when he was sick) so he could listen to the sound and music while everyone was asleep in bed!

4) Good news is - these plus do NOT clog up your ear which is a bonus because whether you are jogging to working out to driving; you can still hear what is going on outside around you including conversations. (PS: I still haven't figured out how my son was able to use bluetooth in one ear and one plug in the other on the iPad and talking - only my son can come up with this ... he was BORN LITERALLY with a phone in his ear... HONEST!)
Meng Qi
Jun 15, 2013 12:41:58 PM
If you love music while running or working out, buy these earphones. They fit nicely and produce excellent sound! You will not be disappointed.

I am usually a sedentary person so I usually just use these earphones to listen to the BBC before going to bed. They make conversations sound really clear and pleasant.
A. Tegtmeier
Jun 15, 2013 12:41:28 PM
I previously owned the CX200 and the CX300 earbuds. And while they were certainly very good, the CX275S are clearly better.
The sound is rich, dynamic and powerful. I use them with an old fashioned Sony MP3 player, which has better sound than the usual smartphone anyway. The integrated mic and smart remote are features I do not need, and thus do not use.
They fit very comfortably in my ears, using the small ear adapter set (it comes fitted with the medium set, but also has a large set in the package).
But back to the sound quality - it is, as said before, excellent.
I listen to all kinds of music, rock, folk, classical, pop, techno, country&western ... everything sounds brilliant through these headphones. Clarity is phenomenal, and there is none of that "tin-sound" so many in-ear headsets generate. of course, if you compare them to "real" over the ear headsets, there is a noticeable quality difference. But in the league of in-ear headsets, this one is the best I ever had (and that includes, not surprisingly perhaps, all the junk that comes with the various portable devices one invariably collects over the years ...).
Frederic Woodbridge "Fred"
Jun 15, 2013 12:41:03 PM
Sennheiser is well known the world over for great audio and they have kept the record going with the CX 275S.
With three different ear bud sizes to choose from, almost anyone should be able to find a fit.
Luckily, I did not need the included adapter to use the headset out of the box but it's there if you have an odd duck.
So how does it sound? Very good. It's clear as a bell with good frequency response. The mic is sensitive but not overly so and it seems to cut down on ambient noise while driving or walking on the street. I didn't need to hold up the mic closer to my mouth or any such procedure, it picked up the conversation pretty well regardless.
The only issue is the lack of any kind of documentation, which is nitpicking on my part. It's not that difficult to figure out how to use it, but I wanted to know which earbud fit into which ear, for example.

**Update (2/27/2013): I'm still using the product and it continues to perform well. I have found that it's a bit easy to hit the button that starts and stops the media player on the phone. Then again, I'm delighted to report that it works with my iPod nano in the same way. I no longer need to touch the nano's screen to stop playback, I just push the button!
Katharena M. Eiermann "Existential Diva -- Pr...
Jun 15, 2013 12:40:35 PM
Sennheiser CX 275 S Universal Mobile Headset

*Reads Features*

Excellent compatibility with all major mobile smartphone brands using a 3.5 headphone jack*
Features an in-line microphone and remote for easy management of calls and tracks*
Outstanding audio and noise attenuation
Intuitive design matched with premium comfort
2-year warranty

Okay, into my shopping cart it goes. :)

A few things I like about the Sennheiser CX 275 S Universal Mobile Headset:

* Excellent, crystal clear, sound quality -- tested over a wide range of music and voice calls.

* Very comfortable. I can wear the Sennheiser CX 275 S Universal Mobile Headset for hours without any discomfort.

* The cord is nice and long -- has never tangled up on Me. Love the black color, as it goes with most any outfit. :)

Does the Sennheiser CX 275 S Universal Mobile Headset, sound like what you may be looking for? :) Highly Recommended! --Katharena Eiermann, 2012