I bought several earphones, including this Coby, which was the most expensive. It did cancel some of the background noise, but not nearly enough to enable peaceful listening to the music. I have Denon and Brookstone noise canceling earphones, which are much more expensive and much more effective. The Coby does not provide a cheap alternative. Neither is it an alternative to $3 - $9 Sony earbuds because the Coby earbuds would not stay in place.