I had absolutely no problems with them even though I didnt use them a whole lot, maybe 20 times. Had them om the back of a Chevy express van all the way down the east coast with no issues. what is surprising is normally it develops after 1-2 year I got it within 3 months. mais pour écouter occasionnellement un peu de musique avec un son correct, foncez ! While I did see a slight improvement, I didn?t see £170 worth of improvement and now they have gone up even more in price. My grandma has difficulty putting shoes on and tying laces so these are perfect to prevent slipping around the house. Have sense ordered another for my other sonsI didnt like how the top doesnt fit the case. I wouldnt say they are as good, but they come pretty close - yes, I said they come I pretty close to those I treasure that cost five times the price of these. These are not Birks, although theyre meant to look like they are. However it was the same one when I got it in the mail.