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Sennheiser CX 400

alaTest has collected and analyzed 3603 reviews from magazines and websites. People really like the usability and bass quality. The comfort and value for money also get good feedback. Many are negative about the reliability.

sound, value for money, comfort, bass quality, usability


We analyzed user and expert ratings, product age and more factors. Compared to other Headphones the Sennheiser CX 400 is awarded an overall alaScore™ of 82/100 = Very good quality.

Review analysis

(Based on 3603 reviews)

Expert Reviews  

User Reviews  

Showing 152 review(s)

Expert Reviews User Reviews
Showing 1 - 10 of 152 Show Reviews: in English | in other languages (263)

Staff Recommended

Expert review by:

Sennheiser CX 400 Ear Buds


Get both style and durability in one pair of ear buds!

The product comes in two variants, Sennheiser CX 400 Precision White and Titanium, and makes one of the most durable such devices. No distortions cover the music users listen to when using these ear buds and they also include an extra kit

Although quite comfortable to wear, the ear buds are not properly sized and the isolation feature does not function at maximum capacity. More than that, the cord is quite short, which leads to having the ear buds falling out of the ear and the bass is...

The Sennheiser CX-400 ear buds have an attractive design and provide superior details reproduction for a wide musical range and a precise dynamic. They are able to maximize the quality of portable music players used and they include a volume control on...

Consumer review by:

Amazon review summary for Sennheiser CX 400


alaTest has collected and analyzed 1238 user reviews of Sennheiser CX 400 from The average user rating for this product is 3.8/5, compared to an average user rating of 3.9/5 for other Headphones on

sound, comfort, value for money, bass quality, portability

79% of the reviews on give this product a positive rating.

This summary is based on the products: Sennheiser MX 55VC Twist-To-Fit In-Ear Stereo Headphone w/ Volume ControlSennheiser CX 400-B Lightweight In-Ear Stereo HeadphoneSennheiser CX 400-B Lightweight In-Ear Stereo Headphone (Discontinued by Manufacturer)

Consumer review by:

Solid pair of earbuds


Pros: good sound; low profile and extremely good fit; very useful cable clip. Cons: cord is prone to getting kinked/tangled; some stethoscope effect when cable clip isn't used.

Comfortable","Compact","Good Bass","Lightweight","Stylish

Too Much Ambient Noise


Consumer review by:

Best Bang for Buck


Sennheisers are by far the best value in headphones. There are plenty of headphones out there that sound better than these, but you'll be hard pressed to find them under $250. I would also be careful where you buy them since there are a lot of fakes...

Comfortable","Compact","Good Bass","Good Value","Great Sound","Lightweight

Mic Signal Down Middle

Consumer review by:

Like the idea.


This would be a great product if they just fixed the design flaws. I still use them because it works great rigged up with my Samsung Pebble.

Almost a great design, decent sounding, good price

I'm 6'3" tall and if I use it like it's intended, it pulls the headphones out of my ears. They should have made the cords to the earbuds longer. I ended up tying a knot in the back to get them so they don't get pulled out. The other complaint is how...

Consumer review by:

Tall people need not bother


If you have a short neck and find this design fits in with how you know you will use your mp3 player, it's not a bad buy. Otherwise, avoid.

Relatively good build quality. Nice silicon carrying pouch. Nice design ideal in theory

I am 6"1", and the length of the cords from the earbuds to where they connect to the lanyard is too short. The earbuds dont reach my ears, and when I put them in, the immediately get pulled out by the weight of the mp3 player. I can avoid this by tying...

Consumer review by:

SENNHEISER CXL400 Silver 3.5mm Gold-Plated Connector Canal Lanyard Headphone


The lanyard is good when sleeping. =P

Really nice clear, crisp sound. Bass isn't that loud, but I like it that way

Cord is incredibly short. It's hard to even use my ipod shuffle

Consumer review by:

Good headset.. not perfect though


I also have a pair of American Audio EB-900s. They are substantially better sound quality. The cord is way to long where the CXL400s its just too short. Otherwise, the EB-900s are much nicer. They are a bit more expensive as well..

Good sound quality, fits well and they are comfortable. Bass is good, but not great. Neck strap to hang units on you neck is really nice. They where a special price and very inexpensive

Cord length is just too short. Sound quality is just pretty good. There is some thought about hanging your MP3 player from them... but no way I can see to do this with my IPOD

Consumer review by:

Great canal buds


Buy an extention for these and they are perfect.

Sound great and they are cheap

Cord Length0.49 feet

Consumer review by:

Waste of money


I would return, but the cost to send it back wouldn't be worth it.

Not too expensive

Useless. You need at least 1 to 2 more feet in the length. I can't believe they made it so short

Product Specifications

The CX 400 are high quality, noise-isolating ear-canal-headphones with a powerful, bass-driven stereo sound for listening on the go. They feature a short cable, perfect for use with mobile phones or MP3 players with a remote-control and/or microphone. With an extension cable the CX 400 can also be used with a player carried in your pocket.

Audio Output

Connectivity Technology:Wired
Headphones Form Factor:In-ear ear-bud
Headphones Type:Binaural
Product Type:Headphones
Response Bandwidth:17 - 21000Hz
Sound Output Mode:Stereo

Audio System

Recommended Use:Cellular phone / Game console / Portable audio system/Portable audio system


Packaged Quantity:1
Product Line:Sennheiser CX

Service & Support

Type:2 years warranty