I am in agreement with the msieur just below!
25! This is probably the best quality price that exists on the market then yes it was not a sound worthy of a SONY AKG or other, but there is sound for occasional use! c is not intended for professionals and is well known! do not judge a product as subjective Manir! This headphone is intended public and offers an alternative to traditional MP3 players headphones! that's all!

So thank you to offer those sennheiser dbutent in his headphone cheap and efficient (all proportions are doing!)