MY EARS DO a solid job rejecting nearly every earbud I try. I’ve chased after too many rogue AirPods that fly out mid-run to stick with those, and I haven’t done much better with other standard earbud styles. But the Powerbeats Fit offers a different style that works for chronic earbud rejectors like me. Compared to standard earbuds that hang down from your lobes, the Powerbeats Fit snugly secures to the outside of your ear canal with flexible wingtips to help lock it into place in your oute...