Sennheiser MX400 In-Ear Headphone with Carrying Case

by Sennheiser

Product Details

Data Sheet [414kb PDF]

• Product Dimensions: 3 x 1 x 3 inches ; 1 pounds
• Shipping Weight: 1 pounds
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B00004Z0BN
• Item model number: MX400
• Average Customer Review: 4.0 out of 5 stars  See all reviews (126 customer reviews)
• Date first available at Amazon.com: October 2, 2001

Product Description

Amazon.com Product Description

Boasting increased bass response and SPL output, Sennheiser's MX400 in-ear headphones sport a glossy black finish with silver print and chrome accents. The MX400 comes complete with a convenient black pocket-sized cord-windup carrying box. The headphones have a frequency response of 18 to 20,000 Hz and a total harmonic distortion of less than 1 percent.

Sennheiser provides a two-year parts-and-labor warranty for the MX400.

Product Description

Headphones for your iPod, Computer, Portable DVD Player, and More! Sennheiser's MX400 are lightweight, in-ear headphones for listening on the move. They provide superior quality for your MP3 player, portable CD player or any other mobile audio source. An ideal choice for everybody who wants to enjoy their favorite hits on the move!

Customer Reviews

Most Helpful Customer Reviews

112 of 116 people found the following review helpful:

5.0 out of 5 stars Great sound - same as the MX-500, but without volume control, March 9, 2005

By 

DarthRad (United States) - See all my reviews

Amazon Verified Purchase

This review is from: Sennheiser MX400 In-Ear Headphone with Carrying Case (Electronics)

I just got a couple of these for my two daughters. They have the same sound as the MX-500. Considering that the cord is only 3 ft. long, and just about anything you hook it up to is likely to have a volume control, a volume control on the cord is pretty redundant.

In fact, the other day, I had the MX-500s plugged in for a long time, and then forgot that there was a volume switch in the cord. As the day wore on, I couldn't quite figure why the sound volume was dropping. It was only later that I realized that the volume switch had accidentally gotten bumped down.

So save a buck or two and get the MX-400 instead of the MX-500s.

I've already reviewed the MX-500 earbuds - I'll just repeat a few points about the MX-400, since these are the same earbuds: If you are a Sennheiser fan, these earbuds have that classic Sennheiser sound - a rich, ringing clarity in the mids and highs, and no excessive bass boost. Like all non-sealing earbuds, the bass is variable and gets louder the more tightly the earbuds are coupled against the earholes. How tightly you get them to fit depends on your ear anatomy really.

As for getting them to stay in place, I discovered that the best way was to wear them upside down and loop the wires around the back of my ears and under my chin.

An alternative way to wear these earplugs, much more discrete, but also a bit less secure, is to loop the wires over the ears and around the back of your neck, like sunglass straps. A small paper clip to the back of your collar will hold the wires in place and you can run the cord around inside your shirt.

47 of 49 people found the following review helpful:

5.0 out of 5 stars Sound is Extraordinary!, September 24, 2004

By 

Dan Sherman (Alexandria, VA USA) - See all my reviews
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Amazon Verified Purchase

This review is from: Sennheiser MX400 In-Ear Headphone with Carrying Case (Electronics)

These in-ear headphones have really impressed me, having been introduced to these type of headphones with the set that came with my Apple Ipod. The Sennheiser ear-buds give a very rich, satisfying sound that I find better than that of the Apple ear buds, especially in terms of a full bass sound -- nothing at all tinny with these. They are not only more comfortable that the set that comes with the Ipod, but not nearly as likely to get tangled up, a major hassle with the Apple model. This definitely is a good set of headphones to own -- I now use them fulltime with my Ipod, keeping the Apple set as a spare.

29 of 30 people found the following review helpful:

5.0 out of 5 stars Excellent In-ear headphones, March 3, 2001

By 

Andrew Beresford (Huddersfield, West Yorkshire United Kingdom) - See all my reviews

This review is from: Sennheiser MX400 In-Ear Headphone with Carrying Case (Electronics)

These in-ear headphones are excellent. They're not quite as stylish as Bang and Olufsen's but I think the sound quality is as good and they also appear to handle bass a lot better at high output. The price is also a LOT more attractive than B&O's.

I would recommend these to anyone that want to use in-ear headphones with portable equipment. They're great.