La calidad del sonido es excelente. If you are quite handy and dont mind post modifying screw holes and grinding down edges to make everything fit, you should be ok. My old pair were 9s and fit fine, but these were just too short. The headphones make every note sound so clear and pleasant! Pros: good fit & finish; brass inserts. I found that I missed the leather sides that many athletic shoes use. ???????????????????????????????????????????????????????????????????????????????????? Overall, this a minor pain, but one that deters us from going on a quick 10 minute ride to the store. I only hang up shirts and skirts and it holds up pretty well. Durch die relativ flache Bauweise passt die Maus in jede Tasche.