They sound great, with a rich, vibrant quality to their audio reproduction. Si consiglia di tenere il volume a livello medio, visto che i bassi sono quelli che producono più vibrazioni. I have wide feet and the next size up fits perfectly. Superb , I really love it! My original review for the iFox was quite negative. The audio quality is "good", but you may find better. As someone who actually paid for this item (Im beginning to hate how many Amazon reviews are written by people who were given the various products which they review) I felt that I should write a review on it. I dont smell anything strange, I can move around, first time wearing one in years so movement is strange. I was not able to read messages on watch. I work on my feet all day, my foot size is a little more then a 12 and I wear a wide boot when I work.