From the outset I would like to make it clear that I will not compare these in-ear headphones with Hi-Fi headphones from the price range of about 50. Also I will try if possible, without prejudice of headphones to write this review. Before we start, I would like but still short write something about my 'Equipment': I myself have a Audio Outputs my Ipod Shuffle and used my Asus Xonar ST. Very high quality so for as an inexpensive headphones. Source material were mostly MP3 files with a minimum of 256 kbits. As competition I have a Creative EP 630 and a Klipsch S4 selected for the Sennheiser CX 300 II. The former is priced slightly below, the latter settled slightly above the price range of Sennheiser. Now to KH himself: Included in the delivery was a very small bag made of synthetic leather that has been padded with some cloth. For quality of the bag, I can not say anything because I have used it rarely. This is because it is very narrow and the headphones disappear just with a little practice it. From beyerdinamic example I've seen better concepts. In addition, 3 ear tips are included. For headset itself should be noted that it is very noisy cable noises when it rubs against clothing. This effect can be minimized by wearing the cord under his shirt. Now the sound of the headphones: When compared to its two competitors of the Sennheiser is its price according to the current (40) is not close enough to convince the Klipsch. He has a clear bathtub vote (highs and lows lifted) and undifferentiated root area. The Klipsch makes it better, the Creative behaves similarly. For the price range which still goes fine. In the low frequency range of Sennheiser has the most 'bang', but I did feel that the Klipsch a bit further comes down. However, all have a tendency to 'oversteer'. The average user will probably be the but no matter. The centers are more or less taken back at all. Electronic music is an advantage because have the Sennheiser and Creative opposite the Klipsch, but are of Klipsch a clean sound again, especially because he did not so much have the urge to roar. In the treble, the Sennheiser includes a little more to the Klipsch. Although he sounds even after some time a little hard but has in relation to the price range for clearer sound. The Creative drops something from here. All in all for the price only average. But for people to hear electronic music, he is recommended. Audiobooks I would therefore not do this to me.
Now for processing: All in-ears have cable, which must simply break after some time, so thin they are. So also no exception my three. The Creative went with me rarely ear and still was after 4 months break. The Sennheiser was once succumbed to a broken cable in the period of one year and once broke up the cover of the external ear. The Klipsch, I most frequently used until I got in-ears in a higher price range, went all four break through cable break. In this price range you can probably expect nothing less. From comfort to me the Sennheiser was most comfortable, although the Klipsch was not bad either. The Creative was not very much, because the earbuds were too 'hard' for me.
I hope I could help you with my review a bit. For questions, please post a comment.