If youve just got your new MP3 player, complete with those free included earphones and are thinking "These dont sound too bad", then wait untill you hear the Sennheiser cx-300s!!!! Ive had these for a year and was so impressed the first time I heard these, wasnt expecting the sound I got for the price I paid! Very good bass response which makes the song sound as good as it was mixed. You can mentally hear the seperate instruments well but at the same time they mix together to produce a complete and full sound.

The earphones are also very comfortable, unlike cheaper plastic ones, they fit snug in your ears so you can even feel them, but they stay in well and will not fall out. I can fall asleep listening to music and wake up with the earphones still in my ears. Also have a good amount of external noise cancelling, you can listen to podcasts at a quite level in a car, or on a plane without any problem!