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Sennheiser CX 275 S Universal Mobile Headset

4.1 out of 5 stars 167 customer reviews
| 24 answered questions

List Price: $69.95
Price: $41.55 & FREE Shipping on orders over $49. Details
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Standard Packaging
  • Universal compatibility with virtually any smartphone on the market featuring a 3.5 mm headphone jack, including Android, Windows Mobile, RIM (Blackberry) and iOS devices
  • Signature Sennheiser sound delivered by high powered dynamic drivers for great bass-driven stereo sound
  • Ear adaptors in different sizes deliver excellent fit and comfort while providing ambient noise attenuation
  • Integrated mic and smart remote for easy management of calls and music tracks
  • 2 year global warranty
64 new from $29.99
$41.55 & FREE Shipping on orders over $49. Details In Stock. Sold by noonbaraeda and Fulfilled by Amazon.

Frequently Bought Together

  • Sennheiser CX 275 S Universal Mobile Headset
  • +
  • Sennheiser CX 300  II Precision Enhanced Bass Earbuds (Black)
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Total price: $89.29
Buy the selected items together

Technical Details

Product Packaging: Standard Packaging
  • android-phone-control
  • ios-phone-control
  • universal-phone-control

Product Description

Product Packaging: Standard Packaging

Product Description

Introducing Sennheiser’s first universal mobile music and communication headset: the CX 275s. Compatible with Android, Windows, RIM and iOS devices, this in ear canal headset offers excellent compatibility with virtually all major mobile smartphone brands using a 3.5 mm headphone jack. With the CX 275s you get legendary Sennheiser audio performance on the go, regardless of which smart phone you have. Different sized silicon ear tip adaptors provide an excellent fit and deliver ambient noise attenuation. Full control is achieved using the in-line remote with microphone for easy management of calls and music track selection. The CX 275s is the answer to complete entertainment enjoyment while keeping you fully connected on the move!

From the Manufacturer

CX 275
Highlights
Fits virtually any smartphone brands in the market*
Great bass-driven stereo sound
Easy management of tracks and calls*

With Sennheiser's CX 275s universal mobile music and communications headset, you can enjoy Sennheiser sound quality on the go, regardless of which smart phone you have. Their high-powered dynamic speaker systems provide an outstanding audio performance while ear adaptors in different sizes allow 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. The CX 275s is the answer to enjoying music tracks while keeping you fully connected on the move through any smart phone featuring 3.5mm headphone jack.

Why Sennheiser?

Sennheiser is the brand of choice for many high-profile recording artists and live sound engineers, delivering the ultimate audio experience to people who crave true-to-life sound. For over 65 years, Sennheiser has applied its in-depth audio research to the development of premium headphones and microphones. Every Sennheiser product endures rigorous quality control tests to ensure you receive durable, great-sounding gear that will withstand daily use in a variety of environments.

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
Did you notice?

You can individualize the CX275s to fit your ear canal for superior sound by selecting among the 3 different sizes supplied ear adaptors.

Sennheiser recommends this headphone for ...

Users of Android, Windows Mobile, Nokia and Blackberry handsets who is seeking better sound for listening and talking

Technical

The CX 275 is an ear-canal headset with a frequency response of 17 to 23,000 Hz.

Warranty

The CX 275 is covered by a 2-year warranty.

Technical data
Headphones  
Frequency response 17-23,000 Hz
Microphone frequency response 100 to 10,000 Hz
Platform supported Andoid, RIM, Windows, iOS
Weight 15 g
Cable
Length  1.2 m symmetrical cable
Warranty
  2-year
What's in the box?
  • CX 275 headset
  • ear adapter set
  • storage pouch
  • adaptor cable

Product Information

Product Packaging:Standard Packaging
Product Dimensions 3 x 1.4 x 6.7 inches
Item Weight 0.5 ounces
Shipping Weight 1.4 ounces (View shipping rates and policies)
Manufacturer Sennheiser
ASIN B008V6T1IW
Item model number CX 275 S
Batteries 1 Lithium ion batteries required.
Customer Reviews
4.1 out of 5 stars 167 customer reviews

4.1 out of 5 stars
Best Sellers Rank #401 in Electronics > Accessories & Supplies > Cell Phone Accessories > Corded Headsets
#24,499 in Electronics > Cell Phones & Accessories
Date first available at Amazon.com September 27, 2012

Technical Specification

Warranty [pdf ]

Warranty & Support

For warranty information about this product, please click here [PDF ]

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Package Type: Standard Packaging Verified Purchase
These are the best sub-$50 buds with mic I have tried and are an easy recommendation. The frequency response I would place on the neutral, accurate, high clarity scale, with very good bass going quite deeply but having a definite bass boost that is bad or good depending on how you want to use them. (See below.) The high end is clear without being strident. The midrange is fairly balanced. I would not say these are high end audiophile buds, they lack the pure smoothness and musicality of the better ones for sure, however for everyday working phones with mic, hard to beat, and much better than the stock dreadful Samsung buds or the cheap $7 Panasonics so many people rave about (have two pair of those). No bad marks. The cords are extremely quiet with about the least 'microphonics' noise I have encountered. Volume is very good, my phone drives these plenty loud. The mic sounds good on phone calls and video recordings.

The noise isolation is decent but not great, assuming you can a decent seal with the 3 different sized rubber covers. I was able to get a good comfy seal with the larger set. Sealing with this type of single wall flexy rubber is never going to get you great ear-plug type noise isolation, but aftermarket expanding foam or custom molded silicone tip covers can do better. Also note that an airtight seal is not the same as a guarantee of good noise isolation. The best noise isolation in my experience comes from the three-flange silicone rubber tips you can get on Etymotic buds. But they are not very comfortable. Next would be expanding foam. Next is custom fitted ear molds. Finally, these typical single wall silicon flange things.

Also note that bass response on ANY earbud goes way up when you have an airtight seal in your ears.
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I love these things. They are the best fitting ear buds I've used. I have a pair of Sennheiser headphone-only buds, but I needed something with a microphone for my cell. These fit identically to the headphone-only version, and work just fine with my S3 phone.

I'm not sure I'd go jogging in the park with them, mainly because I can't jog. But the cords do seem like they'd have problems if they get snagged. But good think I can't jog, so these are *perfect*.
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The sound of the Sennheiser CX 275 S is much better than the Klipsch Reference S4 Premium In-Ear Noise-isolating Headphones the Sennheiser's are replacing. The highs are cleaner and the lows are more defined. They fit better than the Klipsch and everyone I've asked says they can hear me well through the microphone. Even though they fit better than the Klipsch, the only reason I don't give them a 5 start rating is because after a couple of hours of wearing them they start to feel a little uncomfortable, so I have to start moving them within my ears, maybe this is an inherent problem with in-ear headphones, but I guess all in ear headphones suffer somewhat of the same problem.
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Can't say how happy I am with these headphones. I know a lot of people on here where complaining about the thin cord. Yes it get's tangly sometimes. I just untangle it and move on. The sound quality is exceptional. I wear these when I work out and they stay in place. The cord rarely jerks out unless I drop the phone. Overall, could not be happier with these. Perfect for my use!
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I'm no acoustic expert other than to go by what my own ears like and these possibly deliver the best sound I've ever heard out of many many earbuds, headsets and padded earphones in my lifetime so far--other than Bose quality, which I have yet to find any to outdo. I have a pair of Beats over ear padded phones and like these better. Great quality especially for the price. I've had these for a year now and they have held up just fine.
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I ordered these to travel with and to replace Altec Lansing ones I have been using for the last 5 years. Sennheiser ones felt apart after about 1 hour of use. Cords are way too thin, jack is very weak.

Definitely not for travel. One careless move - and these are gone.

UPDATE: Good news is that Sennheiser did replace my set with a new one. I agree with most reviews, that the sound on this set is pretty good, but it's not suited well for travel (what I expected from noise-blocking headphones)
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I bought this because of a review that said this $40 product sounds like they worth over a hundred dollars.
However I don't agree when I have them in my earholds. They are definitely not as good as Jlab J6 earbuds(which is at the same price).
The other problem (only for me) is that it only provides 3 different sizes of eartips and none of them fit my earhole (sigh sigh). Compared to Jlab J6, that product provides 8 different size of eartips, and 2 of them fit my earhole very well.
This product is definitely overrated on Amazon. I would only rate a 2 star.
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I've been using these headphones daily for around 9 months so far, and they're still holding up! To they day, they are providing the same high-quality audio since the day I bought them!

My only complaint is that the button hasn't quite held up to the times, and half of the button is collapsed into the housing. Despite this, though, it still works!

I don't have much to say about the microphone since I never really used it.
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