The ear buds are so sensitive, even sweat make changes. The slide volumn on the side is unmanageabe. If you hit the side of the bud the music will stop or advance your song. I have had buds before abd by far these are the worst. Wish I did not buy them.
The earbuds are big. My ears start to hurt after a short time of use, less than 1 hour. Granted these are earbuds, but the ANC does not begin to dull any environmental noise. Music clarity is ok.