Sennheiser CX3.00 In-Ear Headphones (Black)

Model: 506232

SKU: 649611 Product ID: 792570

  • Detailed sound and enhanced bass
  • Optimum fit in the ear canals
  • Elliptical, tangle-free cable
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    Spice up your sound with Sennheiser’s new CX 3.00 earphones which offer amazingly detailed sound reproduction and enhanced bass response in an incredibly small package. The in-ear design reduces ambient noise to a minimum, and the included set of ear-adapters guarantees an individualized fit with four sizes (XS, S, M, L) to choose from. These are the earphones you’ve been looking for. Try them today!

    Key Features

    Earphones with detailed sound and enhanced bass

    Optimum fit in the ear canals and high attenuation of ambient noise

    Elliptical, tangle-free cable

    Convenient carry case included

    Available in black, white or red

    2 year warranty


    Headphones type - In-Ear

    Headphones use - Street/Fashion

    Colour - Black

    Manufacturer's warranty - 2 Years


Rated 5 out of 5 by from Excellent value for money I originally bought these because I was after a cheap pair of headphones to use until I can afford the far more expensive pair that I've been eyeing off. After using these for only a short while, I think I'll be happy to just continue to use these instead of upgrading. The sound is nicely balanced with a good hefty bass, and the appearance is compact and stylish. I've read in reviews that the earbuds are uncomfortable however I found that I could wear them straight out of the box; I usually struggle to find earbuds that fit nicely as I have very small ears, however these are nice and snug. I've been using Sennheiser for almost 15 years now and have never been disappointed, especially in that the products usually last me for years and only end up "dying" on me because of something I've done.
Date published: 2016-07-05
Rated 2 out of 5 by from A poor replacement for CX300 II If you're buying them as a replacement for your beloved CX300 II headphones, don't. They've had an unwelcome redesign to the earbuds, using a shell design and firmer silicone earpieces. As someone with small ears, they don't fit comfortably anymore and none of the supplied ones give a good seal. As soon as your headphones don't seal the ear canal properly, say goodbye to sound quality. That bass-favouring sound of the old model is lost when the inserts don't fit. My ears hurt trying to get them feeling right. The only positive change is the low-profile jack, but beware this is a problem for phone users with thick protective cases.
Date published: 2018-03-04
Rated 2 out of 5 by from Bit of a let down and build quality poor Bought the CX3 after previous in ear sennheiser earphones I had for years and were virtually indestructible finally failed. With the CX3 I have been a bit let down. Isolation is good and I use these in the open plan office to dull noise from coworkers and nearby coffee machine. Sound quality is OK but does feel a little bass rich as others have said. Really let down by the build quality. Today the left channel in the earphones completely failed. Disappointed with this as these have been well cared for and only had for around 12 months.
Date published: 2017-08-09
Rated 5 out of 5 by from Super Sennheisers What I like about this product, is that the earpiece sits snugly in the ear and blocks most outside noise. The sound is really clear with good bass and clarity. I've used them on flights too and have been able to hear my music over the sound of the aircraft, even at mid volume. I'd recommend these as they are a great price for an exceptionally good product.
Date published: 2016-08-10
Rated 2 out of 5 by from Not practical for gym Great sound quality from these earphones, IF you get them to stay in the right spot in your ear canal. Its a bold statement to say it has the optimum fit in the ear canals. Unfortunately we all have different size/shaped ear canals, so what works for some, unfortunately didn't work for me. Constantly having to re-position the earphones grows thin after owning past earphones that you would never have to touch after first inserting them in your ears. In the past i have found the CX300-II from Sennheiser worked well for me, which i have bought multiple pairs from JB in the past. Shame they no longer have that model. Great sound, not so great fit, for some.
Date published: 2016-08-13
Rated 4 out of 5 by from Love it! i got it as a Christmas present and i was so happy, the bass is really good i it blocks out the backgrounds noises
Date published: 2016-04-06
Rated 1 out of 5 by from Short Term Overpriced Earphones Just everything about these earphones has short term written all over it! The buds slip off and can easily get lost, I've had mine for 8 months and the left one has stopped working with some distant crackling in the right. Taken great care of them after mishap with Beats in ear which happened to have done the same thing. Do yourself a favour and buy some cheap earphones. Overpriced earphones are not worth it in the long term. Great bass, fall out easily, poor physical qualities. Very disappointing.
Date published: 2017-09-17
Rated 3 out of 5 by from Great sound, shoddy build quality. This is one of those products that has good performance but shoddy build quality. The sound is nice but the bass response is too high. Mids get muffled by the excessive bass. Nothing that tweaking the equaliser can't fix, mind you. However, the biggest problem with this earphones is the cabling. I'm onto my second pair (exchanged under warranty) where the rubberised cable coating starts to peel off. After that, the inner cable is exposed and say goodbye to your earphones, because it is only matter of time before they fail completely.
Date published: 2016-09-28
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