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Amazon Protect 2 year Accidental Damage & Breakdown Cover for Portable Audio from £20 to £29.99

London General Insurance Company Limited

  • Mechanical and electrical breakdown cover including accidental damage.
  • No extra costs or other charges.
  • You choose between a replacement or an Amazon Gift Card (or alternative selected by the Insurer) to the same value if your product cannot be repaired.
  • Worldwide cover. Documents emailed within 24 hours. Cancel at any time, full refund within 45 days, proportional thereafter. Transferable if you sell or gift your product.
  • Amazon Protect only covers products purchased on the same day from Amazon.co.uk. Please read the Policy Summary located on the insurance product page before buying.
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Sennheiser CX 300 II Precision Noise Isolating Earphones - Black

3.9 out of 5 stars 1,473 customer reviews
| 49 answered questions

RRP: £44.99
Price: £22.99 & FREE Delivery in the UK. Details
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Dispatched from and sold by Amazon. Gift-wrap available.
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Black
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  • Easy upgrade from standard ear-buds; for those who crave sound in a compact, portable package
  • High-quality dynamic speaker systems for bass-driven stereo sound and durability
  • Personalised fit in the ear canals to function as an earplug and high-quality speaker
  • Convenient carry pouch included for safe and storage and transport
  • Asymmetrical cable reduces tangle and cable clutter

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Manufacturer Warranty
Sennheiser products sold and dispatched by Amazon.co.uk carry the Sennheiser limited warranty. Learn more here.
£22.99 & FREE Delivery in the UK. Details In stock. Dispatched from and sold by Amazon. Gift-wrap available.

Frequently Bought Together

  • Sennheiser CX 300 II Precision Noise Isolating Earphones - Black
  • +
  • Sennheiser CX300 replacement ear buds - 10 pack Small ear sleeves
  • +
  • AKORD AU-61 Hard Carrying Case Bag for Earphones
Total price: £25.37
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Colour Name: Black

Product details

Colour Name: Black
  • Product Dimensions: 11.8 x 411.5 x 243.8 cm ; 5 g
  • Boxed-product Weight: 100 g
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
    Find out more about our Delivery Rates and Returns Policy
  • Item model number: CX300 MK II
  • ASIN: B001EZYMF4
  • Date first available at Amazon.co.uk: 1 July 2006
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (1,473 customer reviews)
  • Amazon Bestsellers Rank:
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Product Description

Colour Name:Black

Product Description

Get a powerful, dynamic sound with big bass response custom-fit ear canal phones. An asymmetrical cable provides freedom of movement and the included carrying pouch avoids tangles in transit. Offering a powerful, bass-driven stereo sound with clarity and improved dynamics are the CX 300-II Precision Black ear-canal phones. The various sizes of ear adapters (S/M/L sizes) provided in the package allow for a personalised fit as well as a high passive attenuation of ambient noise.

Box Contains

  • CX 300 II ear canal phones
  • Ear adapter set (S/M/L)
  • Carrying pouch


  • Customer Questions & Answers

    Customer Reviews

    Top Customer Reviews

    Colour Name: Black Verified Purchase
    Got these a replacement to the CX300 mk1s which I have been using every day as I walk to an from work.

    First thing to note is the build quality. A bigger, gold plated jack looks and feels alot sturdier. Its bigger size has however not been a hinderance. The junction reinforcement, where each cable splits off has also been beefed up making these feel much more resilient. Not much has visually changed with the driver unit, it has now got a sloped back but overall looks to be the same size etc.

    The biggest difference comes in the sound department (where it matters!). The bass response is much better and is pretty astounding for in-ear headphones at this price. I quite like walking along to the odd dance track and tunes like Mylo - Destroy Rock 'n' Roll (Tom Neville Clean remix) sound excellent. The bass has plenty of weight and presence and the high end is tight & crisp.

    I'm not going to comment on how well these head phones fit as that is a completely personal interaction, they either will or they wont. There are three different sized rubber ear pieces included, so hopefully one pair will work. There is also a soft sprung clasp pouch included, for stowing the headphones when no in use. This is a welcome extra but I've reverted back to my usual hard shelled tin as it offers a bit more protection whilst bouncing round my bag.

    To summarise, if you already own CX300s, the mark twos are a worthwhile upgrade. If you are in the market for in-ear headphones, these should not be overlooked. Top Quality Sound and Build for next to nothing.

    **** ONE YEAR EDIT ****

    Well after a year of daily use (hour walk to and from work) a connection in the left ear has gone. Resulting in only faintly audible levels coming from the left hand side. There's a two year warranty so it should be covered.
    10 Comments 244 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Colour Name: Black Verified Purchase
    Alas, I am no longer at the mercy of rubbish, overpriced Apple earphones.

    I was once happy to call myself a proud owner of Sennheiser earphones. I used them everyday, starting from the moment I'd leave the house, and couldn't be more pleased with the quality of sound delivered. On one fateful day, over 2 years after they were purchased, they were snagged by a hook on the train, which rendered them useless and left me feeling utterly desolated.

    Having bought an iPhone 5, the newest, coolest phone on the block at the time, I was sure their redesigned earphones would do the trick. Ah, if only that were the case. They work alright when I'm at home in utter silence, but if I dare attempt to use them in a noisy environment, I hear nothing but faint voices and murmurs in the background. Maybe it's my brain telling me it's time to get some Sennheisers.

    I am pleased to have succumbed to this temptation. I bought these only 2 days ago but I have not enjoyed my music this much in a long time. The sound is crisp, the bass is thick and distinguished, the voices sound natural and clear. You know that loud, annoying group of friends chatting hysterically when you just want to listen to your damn music? You can forget about them. And the wailing baby. And the vigorous roar of the bus engine. The Sennheisers will clog your ear up, and you won't hear squat from the world around you unless it damn pleases you.

    All in all, 5 stars. Does exactly what I want it to and no more.
    Comment 115 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Colour Name: Black Verified Purchase
    Do you want to listen to music without other people hearing it? Do you like black things with little shiny silver bits on them? Then these might just be for you!

    Features include:
    - decent sound quality, as far as I can tell. But I'm just some pleb listening to 256kbps MP3s, not George Martin with a DAT machine.
    - pretty good bottom end, if you like that sort of thing. If you don't like that sort of thing, change the EQ setting and I'm sure you'll be fine; otherwise it's a bit like sticking your pinky finger too far into your earhole.
    - reasonably durable. I've had them a couple of weeks and they haven't broken yet.
    - fairly comfortable, insofar as sticking foreign objects into your ear ever can be.
    - sensibly priced. But if you want to spend £200 on a pair of headphones, that's your call. Look elsewhere.
    - okay accessories. Comes with extra rubber ear-plug bits that double as fake beauty spots and a spring-clasped carrying case. The latter can be clipped onto your nose if you want to pretend to be a koala.

    There is some cable noise, which I know aggravates some people. You can ameliorate this by sticking the cable inside your shirt, which tickles pleasantly, or you can embrace it and adjust your stride to sync with the music, adding an extra layer of percussion. If it's a big deal, spring for wireless headphones and accept that you're going to look like Lando Calrissian's factotum in 'The Empire Strikes Back'.

    In short, I like them as much as, if not more than, other earphones I've tried.
    7 Comments 228 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Colour Name: Black
    Yes, I wrote a review for this product, the CX300-iis, not too long ago, praising its great sound quality at a value price. I have had these earphones since July 2010 and everything seemed fine - I had looked after them perfectly, treated them well, no physical breakage whatsoever. I had stated in my earlier review how some of these reviewers may have bought fakes, or treated them badly, because mine seemed to have a long lifespan ahead of them. It's a shame that they decided to break now - I had used them in the morning one day, perfectly fine. Went back to try and use them in the evening and for all of a sudden no sound came out of the left earpiece - how annoying and odd at the same time. I have no clue how and why this happened. It just goes to show that looking after these earphones has ABSOLUTELY NO POSITIVE OR LONG TERM EFFECT TOWARDS ENHANCING THEIR LIFESPAN.

    I'm not prepared to buy another pair of these earphones. I still trust Sennheiser and their products, but for them to release a product with such commonplace issues that many reviewers have stated and voiced AGAIN and AGAIN without doing anything about it, is ridiculous and unacceptable. For cheap headphones, I would strongly urge you to look to another brand. For any audio equipment above £25, I would recommend Sennheiser products due to the staggering increase in the build quality of their products.

    So for anyone buying these, just be prepared to have low expectations regarding how long you expect them to last for, in order to avoid disappointment like myself and many, many others. If they last over 6 months, you should be happy! For all other consumers who feel that their money should be invested in something that will last/be worthwhile, avoid this like the plague.
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    58 Comments 372 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Colour Name: Black