Sennheiser CX300-II Precision In-Ear Headphones, Black

Product information

Small and discrete, the Sennheiser CX300-II Precision in-ear headphones boast high-quality dynamic speaker systems for powerful, bass-driven stereo sound.

They have an excellent fit and a high reduction of ambient noise. Ear adaptors in three different sizes are also included, as well as a convenient carrying pouch.

The CX300-II Precision in-ear headphones are ideal for use with all MP3, iPod, iPhone, DVD and CD players, and portable gaming systems.

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
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


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Standard delivery


Next or named day delivery


Next or named morning delivery


International delivery available

  • Europe (Non EU) - £7.50
  • Europe (EU) - £7.50
  • Rest of World - £25.00
Provided by JL Delivery Ltd - more about international delivery
From  £7.50

Collect+ from a local shop from Saturday - postcode exclusions apply for Collect+ deliveries

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We want you to be happy with your purchase. If you're not, just return the products to us or to one of our shops. Unless faulty, we'd like this to be within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.

Depending on the type of product, you can make free returns via our shops, Royal Mail (or courier collection for large or heavy items), Collect+ or via MyHermes.

Find out more about returning products

Q & As

Sennheiser CX300-II Precision In-Ear Headphones, Black 4.4 5 25 25
Not for everyone I bought these on the strength of the reviews and knowing you generally get a quality product with Sennheiser. Having almost lost fingers trying to get into Sennheiser's impossible packaging, I was ultimately very disappointed in these earphones. None of the 3 sizes of earbud comfortably fit me, and you only have to knock then a fraction for the sound to become thin, tinny and generally awful. They're very small and fiddly, with both the earphones and cables themselves feeling very lightweight and brittle. I could not find comfort in these at all. Obviously in-ear phones aren't for me. So overall a waste of time and money - I intend to return them and find something more suitable. 31 August 2014
Quality !! I have been using Sennheiser headphones for a long time, the sound quality is excelent and the bass is nice and clean. I listen to a variety of music,anything from 60s soul to club/dance and dubstep. They are comfy to wear for hours on end and are absolute value for money. You will not be dissapointed :) 11 February 2014
Good headphones No question, these are an enormous improvement on the standard earpieces that come with iPod. At the price therefore very good value. The sound quality improves the further you push them into your ear- but obviously this gets uncomfortable if you push too much. I found that wriggling the pieces around at different angles in the ear let me find an optimum listening position and altered the bass response considerably. Also they do cut out some external noise compared to lightweight on-ear phones in the same price range. 21 June 2012
Very good iPod/iPhone headphone replacements These are the 2nd pair of these headphones I bought (first pair didn't break I lost them). They sound twice as good as the iPhones headphones and have good noise cancelling ability with the right selected ear tips out of the 3 different sizes they give you. The bass and the clarity are really good. These are a no brainier if you don't like the sound of the iPhone headphones. 16 May 2012
Good buy Great value for money. Various sizes of soft and comfortable ear pieces which allows you to choose the correct pair to fit your ears; this means that they do not fall out of your ears during activities such as the running on a treadmill. Good external sound reduction. 12 February 2012
Good stuff for the money Good headphones, stay in the ear when running and good sound quality. Can't complain. 01 February 2012
Missing a key part for iPod Shuffle I had read reviews on Sennheiser products and chose the CX300-II as they seemed to give me all that I needed. I wanted earbud headphones to run my ipod shuffle and, according to the spec list, these were suitable. But upon opening the packet, i discovered that these do not have the inline volume track shuffle remote needed for the 3rd Gen shuffle. Thankfully JL are great and took them back immediately at the collection centre with no quibble. I'm sure they'd be great headphones if only I'd have been able to try them. 26 January 2012
Great buy Got these for my 15 year old son. He loves them. Was complaining his ipod earphones kept faling out etc. He says these stay in and the sound quality is brilliant. Perfect for travelling to school. Great price too 21 January 2012
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