Sennheiser CX 275s In-Ear Headphones with Microphone, Black

Product information

Sennheiser’s ergonomic CX 275s in-ear headphones will squeeze exceptional sound clarity from your smartphone. Thanks to its high-powered dynamic speaker systems, you’ll enjoy a rich, full sonic reproduction as well as the ability to switch between calls and tunes at the touch of a button.


  • Universal fit - fits virtually any smart phone featuring a 3.5mm jack, including Android, Windows Mobile, RIM (Blackberry) and IOS devices.
  • Ear adaptors of different sizes are included to provide a personalised ear canal fit and passive attenuation of ambient noise.
  • An in-line microphone and smart remote is integrated on the symmetrical cable for ease of use and for easy management of tracks and calls.
  • Passive noise isolation will immerse you in a more detailed world of listening, while keeping your music to yourself. Ideal for the commute.
  • High powered dynamic speaker systems for great bass-driven stereo sound.
  • Includes a soft storage pouch for easy portability.
Cable length
3.5mm jack plug
Eligible for International Delivery
Folding Information These headphones are perfect for music lovers who spend a lot of time travelling around. When not in use, these models can be folded up and stored safely, ideal for packing away.
Model name / number
CX 275s
Sound Isolation Information Either flexible rubber sphere-like tips which slot nicely into your ear canal providing a seal, or cupped designs which surround and seal your ear from the outside world, they effectively eliminating ambient sounds, and trap your music in your ear
Weight Information Unpackaged weight


Click & collect

FREE on orders over £30, £2 if you spend less. Collect from John Lewis or Waitrose tomorrow from 2pm
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Standard delivery in 5 working days


Named or Saturday UK delivery


Named day UK delivery pre-10.30am


International delivery available

  • Europe (Non EU) - £7.50
  • Europe (EU) - £7.50
  • Rest of World - £10.00
  • Australia - £10.00
Provided by JL Delivery Ltd - more about international delivery

We want you to be happy with your purchase. If you're not, depending on the type of product, you can make free returns in the UK via John Lewis shops, Royal Mail, Collect+, or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454. Find out more about returns.

You'll find returns information on your delivery note. Unless faulty, we'd like you to make your return within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.


Find out more about returning products

Q & As

Rated 4.4 out of 5 by 11 reviewers.
Rated 5 out of 5 by Superbly clear These are extremely comfortable and give a great sound and clarity. They represent fantastic value. 26 May 2015
Rated 3 out of 5 by Overpowering bass; Very little clarity I've owned 5 or 6 Sennheiser earphones over the past 5 years and they always produce an awesome sound quality, even the lower price banded ones such as the CX 1.00 or Street II. However, buying these I was really disappointed as the bass was extremely overpowering and could barely hear the mids and highs. It was a good thing I bought these online as I returned them pretty much as soon as I collected them in-store. It may have just been the pair I bought as, obviously, not all of the earphones are made exactly the same. The design of these are 'meh' for lack of a better term but that's all personal preference. These earphones do have the button which has pause/play and caller functionality but if you are willing to compromise, then I would recommend the similarly priced CX 1.00 or the younger brother CX 3.00 as they produce a more clarified sound quality where a great range can be heard. Both of my recommendations are also sold by John Lewis and you will definitely not regret it. Cheers. 06 April 2015
Rated 5 out of 5 by Great Product! Bought these over 6 months ago, and they are still working well. This should be expected, but other pairs I have previously owned have not lasted so long. The bag/case that comes with them has definitely helped in preserving them. Very good sound quality for in-ear headphones, and very cheap for the quality you get. My pair even went through the washing machine by accident and still work with no evidence of the incident! Would recommend. 23 March 2015
Rated 4 out of 5 by Good Headphone I have this model of headphone for a while now, I mostly listen to pod casts and books and they do a cracking job. I also need to use them for phone use at time for work call and again they do a good job for this too. I broken a few other type over the years and these seem to deal with me well too. 18 February 2015
Rated 4 out of 5 by Good sound. Very clear. Good quality. Works well on the train. Falls off a bit too easily. 28 January 2015
Rated 5 out of 5 by Superb sound Very pleased with purchase. Amazing difference in sound. 10 June 2014
Rated 5 out of 5 by Pleasantly surprised so far I was worried about buying new earphones but am very pleased I bought these. I did a lot of research so thanks to everyone else who has reviewed them. I have little ears and these fit without hurting! They also block out a lot of background noise so listening to music is a really lovely experience. They definitely give a much better quality of sound than the regular iPhone/iPod earphones. It is richer and has more depth. A good buy. 01 April 2014
Rated 5 out of 5 by Sleek and comfortable! These earphones are lightweight and comfortable- ideal for taking travelling or for use on the train. I bought them for my husband and I've been borrowing them ever since! 11 January 2013
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