After more than three years and almost daily use PortaPro parted with my Koss now but so gradually the earbuds on. So I ordered from Amazon unceremoniously new. As usual with Amazon, the earbuds were within 2 days in my mailbox. Two of the six ear cushions were quickly fished out of the blister pack and replace the defective cushion. Since the PortaPro really feel like new again to - the great sound is of course the same. But the comfort has increased again considerably compared to the defective cushions. Only for my opinion even more than rich price I have to deduct a star, because it is here to a mass-produced items with a value of less cents apiece. There are around 10 euros for six upholstered already a violent announcement when the whole headset will cost 35 euros. But if one of these excellent sound, the thing is worth .....
