And we have to do just that to be able to use the features. Works great for my nearly 20 year old HD 580 precisions. buy this! I havent worn them a lot yet, but they feel like running shoes on me feet and I look forward to summer hiking in them. what it does mean is that using the volume + and - on my iPhone is far less useful because the increment is too much. Der Deckel geht nicht zu. These Casmags are a really good deal at just $30. This is my first Bose purchase and I?m happy. I have had some issues with very brief interruptions, but it could be any number of things. Great shoe at a terrific price.