Instantly, I could tell a difference in the sound quality with these across a range of music genres. The case is really small I thought it qas bigger. Uncomfortable shoe I would have ordered a 1 to try but it wasnt available. The rug also smelled like hydraulic fluid for over a month. I finally walked away. Ill change my review when the product description changes because other people like me are going to chose this product based on what it says in the description. They were 5 starts before now. There also send to be some outside temperature leaking in and the big toe area even though there isnt any homes there. The plastic is valuable and study just not tuff