Top Sennheiser product!

When a few weeks ago my Sennheiser MX 70 Sport In-Ear Headphones green / white due to the sensitive separation point to the listeners, after three years of intensive use, gave up the ghost, I was determined to return to a Sennheiser product to grab. I had to replace 3 In-ear earphones bought before I could make up my mind and I wanted to test the In-ear technology anyway once extensively on comfort. I was immediately impressed by the silencing the already cheap versions is very strong.
I finally decided on the Sennheiser CX 400-II Precision and am extremely satisfied after some trial and error.
The bass is very powerful, treble clear. In addition, the dangerous separation point is in this model better protected than at my last Sennheiser headphones. The volume control is also very convenient if you necessarily get the player out of your pocket does not want to change the volume. In addition, it also allows for a continuous adjustment of the volume, which does not have a lot of players per se. However, the sound with the built-in volume control for the headphone is not completely off!

Also, the additional package with leather bag, Aufrollhalter, clip and additional essays acts of high quality. Play The essays, as already mentioned by some other reviewers, a high major role in the sound quality. Without proper seating of the listener hardly bass is audible.

Recommended highly, these headphones are for people who are in possession of a high quality player, as in my example with a Samsung YP P3 JNS video / MP3 player 32GB (7.6 cm (3 inches) touch LED, FM tuner, Bluetooth 2.1) silver in black is the case.
With the right equalizer settings of a good MP3 player headphones sound the same again as well.

Conclusion: Excellent headphones showing their full potential, particularly when combined with a good player.

Update: after more than a year now use the headphones have no noticeable damage to, and still work perfectly, although more than 4 hours in use, I have every day. Highly recommended headphones!