Overcast developer Marco Arment wants to find the perfect pair of headphones, and in the service of that quest, he has acquired and reviewed 19 pairs of portable, closed headphones to identify the best in that category. Surprisingly, the oft-derided Beats Studio, which Arment credits for popularizing high-end headphones, wasn’t the worst of the lot. The winner in both sound quality and comfort might surprise you, as it was one of the least expensive models tested. follow link
Go Back and Forth Fast in Preview
If you're reading a PDF in Apple's Preview software, and you follow a bookmark or an internal link to move around within the PDF, you can quickly return to where you were by pressing the keyboard shortcut Command-[ (that's Command-Left Bracket). Or, you can choose Go > Back.
The command works iteratively, so you can go back to just the previously viewed page or if you issue the command again, to the page before that, and so on. There's also an equivalent Go > Forward (Command-]).
Marco Arment’s Mega Review of Portable, Closed Headphones