Very good headphones in sound quality especially for the price. Its clear, medium, serious all very well indeed going the best I have had the in-ear, the top! In general we have designed helmets pr bass / bass (Beats) (ps: speaking of beats (in-ear) Image S4 is greater after a test on the internet). Cable also very nice (although you can store) I remove a star comfort. Not very comfortable for me for + 1h and so badly put. I use a motorcycle (abroad so as not to do the same) impossible to listen to music if you put a helmet on top because if the headphones are too deep sound is muted because the caps have a hole small. Therefore very sensitive to this point, too bad. Aside from the comfort nothing to say I highly recommend