Noise reduction is fantastic. The little machined fittings on the GSP are a great touch, where the wire plugs in and on the ear cups, it has a machined, masculine, quality feel and look. After reading the reviews , I went up 1/2 a size. Laut B&O Support wurden sie nicht repariert, da es sich nicht um ein Garantiefall handelt. Ordered size 9. I have a lot of shoes and I really needed a way to keep them organized better & keep them from being dusty between wearing. Ive taken my chances with headsound V5 and thats one of my best purchases of this year. I LOVED this for my recent trip to Mexico. Sturdy, and well worth the money! The reason for this is because 20 minutes from home I decided to take a back road, caught a sheer patch of ice and rolled my car off of a bridge.