The New York Times - December 2016
How Loud Are Your Headphones?
http://www.nytimes.com/2016/12/06/health/how-loud-are-your-apple-iphone-headphones.html
How Loud Are Your Headphones?
http://www.nytimes.com/2016/12/06/health/how-loud-are-your-apple-iphone-headphones.html