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Sennheiser CX400-II Stereo Ear-Canal Headphones - Black

7 Review(s)
  • The musical detail resolution with better skill and precision driving force

The Sennheiser CX 400-II Precision ear-canal headphones offer natural dynamic sound reproduction, bass-driven sound, and excellent sound suppression. Get ready to upgrade your sound quality thanks to Sennheiser's superior musical reproduction. This brilliant sound is achieved with neodynamic magnets that are tuned precisely to produce life-like natural sound. To block out the noise from the outside world and guarantee a brilliant sound experience, the CX400-II earphones are equipped with adaptors that will enable a snug fit. 

Detailed Parameters

Wearing styles: ear headphones

Type: Wired

Whether the microphone: No

Plug Diameter: 3.5mm

Plug type: straight type

Cable length: 1.2M

Sensitivity: 100DB

Headphone Impedance: 23Ω

Frequency range: 20-18000Hz


Packing List

CX 400 II Precision Black ear

Ear adapters (large / medium / small)

Carrying Case



Packing List

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S. Challis
Jun 15, 2013 2:03:37 PM
These headphones are good quality and come with a few different size covers so that you can use the ones that fit you best. Sound quality is very good for such a small convenient set, I take it everywhere I go and it's not a burden.
Jun 15, 2013 2:03:12 PM
For the money, I've not heard better in ear headphones. At first, they didn't sound very good. But then I tried on the different adapters until one fit well, and the sound was incredible - very bright, up front, clear and plenty of bass. I heard very familiar songs that sounded much better than my old in ear pair. I recommend these very much, but take a little bit of time to get the right adapter piece attached.
Jun 15, 2013 2:02:26 PM
very good product, sennheise makes the best consumer earphone for sure. amazing clear sound, deep bass and reasonable price. I you want a great sound, the only choice is sennheiser.
Nicolae Ghimbovschi
Jun 15, 2013 2:01:57 PM
Before I had CX 300. I liked them. When I needed a new headphones I chose this one. Excellent bass. The sound is strong.
The package contains a lot a buds and a nice bag.

Buy it !
Jun 15, 2013 2:01:30 PM
The sound quality of these headphones is phenomenal. Crystal clear, with a balance between the highs and lows, without neglecting the midrange (most speakers seem to do that). However, I'm a little frustrated with the ergonomics. You have to jam the earbud into your ear canal in order to get the full good sound. This makes it uncomfortable after awhile. They fall out of my ears when I'm exercising too.
Jun 15, 2013 2:01:02 PM
Bought these over a year ago to wear while working as a remodeling contractor rather than my expensive Etymotic Research ER4P. They don't miss a beat! Excellent seal via the various size tips supplied. Shirt clip to keep the works from slipping off. And stronger bass than the good phones. The cord is a little long but the in-line plug has saved them from being ripped apart when the cord catches on some protrusion. Sound is quite satisfactory for both the books I listen to as well as the wide gamut of music I love.
What more can one want? Oh yeah a very decent price. Good value for the money!
J. Savage
Jun 15, 2013 2:00:36 PM
An affordable upgrade to the earbuds that come with an ipod. These come with lots of soft rubber adapters to make the proper fit inside your ear. The volume slider is a great feature for situations where the player is in a pocket or jacket and you need to adjust the volume for some reason. The only part of the design that is weak is the right-angle plug. Be sure to grip the plug as close to its end as possible (the part closest to the ipod) when you remove the plug from the ipod. If you grab the right angle section and use it to unplug the earbuds from the ipod on a regular basis, eventually the metal plug that connects inside the ipod will separate from the plastic right-angle housing. I broke my first pair that way but like the product so much I bought a new pair.