this is disappointing for Sennheiser to release such an amazing product with this little defect. 99 to $99. These are superb cables that do what they purport to do very, very well. This is my go to Brand because of comfort & current styles. First the isolation: when no music is playing I can still hear the AC if I get close enough. I would actually go a size larger next time for myself, but these were perfect for my sister who wears a 7 or 7. Looking for a great wireless gaming/cell phone headset, this is it. Great sound, comfortable and such lovely leather I dont like sealing earbud types, and will give up sound quality for situational awareness. I was really looking forward to this product.