No issues with it at all! If you are expecting top end hifi quality for that price vs ones costing hundreds of pounds then there a reality gap between the ears somewhere. The cord lays on my shoulders unevenly with the weight skewed to the left, which tends to pull the bud out of my left ear. After buying these I have thrown all my old pillows away and am purchasing these as replacements. The quality is good, but sizing is terrible and too small. TBH I wasnt expecting a ton when it comes to buying this case, as the last one I bought for a pair of headphones broke after a week. Make sure you go into the settings on your phone and check the volume level. I am a 64 year old grandmother, and found these racks easy to install. These earpads look better than the original. Passen wie angegossen, bei Birkenstock trage ich Gr.